Pengaman Rumah Multi Sensor Berbasis Arduino Uno dengan Komunikasi Ethernet

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44 Lampiran 1

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45 Lampiran 2

Program Arduino Uno

#include <EEPROM.h>

#include <DHT.h>

//Constants

#define DHTPIN 4

#define DHTTYPE DHT22

//DHT dht(DHTPIN, DHTTYPE);

//Variables

int LDR= A2;

int pirPin = 6;

int redLED= 13;

int greenLED=12;

int nilaiLDR= 0;

int buzzerPin = 11;

int pirState = LOW;

float hum;

float temp;

int MQ2 = A3;

int MQ2Value = 0;

int address = 0;

int startAddress = 60;

void setup() {

Serial.begin(9600);

Serial.println("DHT22 Temperature dan Humidity ke EEPROM");

Serial.print("Data dimulai pada lokasi EEPROM ");

(3)

46 pinMode(pirPin, INPUT);

pinMode (MQ2, INPUT);

dht.begin();

}

void loop()

{

//SENSOR TEMPERATUR DAN KELEMBABAN (DHT22)

//hum = dht.readHumidity();

//temp= dht.readTemperature();

Serial.print("Humidity: ");

Serial.print(hum);

Serial.print(" RH, Temp: ");

Serial.print(temp);

Serial.println("C");

if (temp >= 32){

tone(buzzerPin, 956, 200);

delay (500);

tone(buzzerPin, 956, 200);

delay (500);

tone(buzzerPin, 956, 200);

delay (500);

tone(buzzerPin, 956, 200);

delay (500);

tone(buzzerPin, 956, 200);

delay (500);

Serial.println ("OVER HEAT"); }

else if (temp <= 28){

digitalWrite (greenLED, HIGH);

Serial.println ("LOW TEMPERATURE");}

else if (temp = 29, temp = 31){

digitalWrite (greenLED, LOW);

(4)

47 // SENSOR PERGERAKAN (PASSIVE INFRARED)

Val = digitalRead (pirPin);

if(Val == HIGH) {

if (pirState == LOW) {

Serial.println("Motion Detected");

pirState = HIGH;

tone(buzzerPin, 956, 200);

delay (500);

tone(buzzerPin, 956, 200);

delay (500);

tone(buzzerPin, 956, 200);

delay (500);

tone(buzzerPin, 956, 200);

delay (500);

tone(buzzerPin, 956, 200);

delay (500);

} }

else {

if (pirState == HIGH){

noTone(buzzerPin);

Serial.println("Motion Ended");

pirState = LOW; }}

delay (2000);

//SENSOR CAHAYA (LDR)

{

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48 digitalWrite(redLED, LOW);

delay (2000);

}}

// Sensor Asap dan Gas

{

MQ2Value = analogRead (MQ2);

Serial.print ("NilaiMQ2= ");

Serial.println (MQ2Value);

if (MQ2Value >= 300 ) {

tone(buzzerPin, 956, 200);

delay (500);

tone(buzzerPin, 956, 200);

delay (500);

tone(buzzerPin, 956, 200);

delay (500);

tone(buzzerPin, 956, 200);

delay (500);

tone(buzzerPin, 956, 200);

delay (500);

Serial.println ("Status Asap : YES ");

} else

Serial.println ("Status Asap : NO"); noTone(buzzerPin);

delay (2000); // delay 2 sec

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49 Lampiran 3

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Aosong Electronics Co.,Ltd

Your specialist in innovating humidity & temperature sensors

Digital-output relative humidity & temperature sensor/module

DHT22 (DHT22 also named as AM2302)

Capacitive-type humidity and temperature module/sensor

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Aosong Electronics Co.,Ltd

1. Feature & Application:

* Full range temperature compensated * Relative humidity and temperature measurement

* Calibrated digital signal Outstanding long-term stability Extra components not needed

* Long transmission distance * Low power consumption *4 pins packaged and fully interchangeable

2. Description:

DHT22 output calibrated digital signal. It utilizes exclusive digital-signal-collecting-technique and humidity

sensing technology, assuring its reliability and stability.Its sensing elements is connected with 8-bit single-chip

computer.

Every sensor of this model is temperature compensated and calibrated in accurate calibration chamber and the

calibration-coefficient is saved in type of programme in OTP memory, when the sensor is detecting, it will cite

coefficient from memory.

Small size & low consumption & long transmission distance(20m) enable DHT22 to be suited in all kinds of

harsh application occasions.

Single-row packaged with four pins, making the connection very convenient.

3. Technical Specification:

Model

DHT22

Power supply

3.3-6V DC

Output signal

digital signal via single-bus

Sensing element

Polymer capacitor

Operating range

humidity 0-100%RH; temperature -40~80Celsius

Accuracy

humidity +-2%RH(Max +-5%RH); temperature <+-0.5Celsius

Resolution or sensitivity

humidity 0.1%RH; temperature 0.1Celsius

Repeatability

humidity +-1%RH; temperature +-0.2Celsius

Humidity hysteresis

+-0.3%RH

Long-term Stability

+-0.5%RH/year

Sensing period

Average: 2s

Interchangeability

fully interchangeable

Dimensions

small size 14185.5mm; big size 22285mm

4. Dimensions: (unit----mm)

(9)

Aosong Electronics Co.,Ltd

(10)

Aosong Electronics Co.,Ltd

Pin sequence number: 1 2 3 4 (from left to right direction).

Pin

Function

1 VDD----power supply

2 DATA--signal

3 NULL

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Aosong Electronics Co.,Ltd

5. Electrical connection diagram:

3Pin---NC, AM2302

is another name for DHT22

6. Operating specifications:

(1) Power and Pins

Power's voltage should be 3.3-6V DC. When power is supplied to sensor, don't send any instruction to the sensor

within one second to pass unstable status. One capacitor valued 100nF can be added between VDD and GND for

wave filtering.

(2) Communication and signal

Single-bus data is used for communication between MCU and DHT22, it costs 5mS for single time

communication.

Data is comprised of integral and decimal part, the following is the formula for data.

DHT22 send out higher data bit firstly!

DATA=8 bit integral RH data+8 bit decimal RH data+8 bit integral T data+8 bit decimal T data+8 bit check-sum

If the data transmission is right, check-sum should be the last 8 bit of "8 bit integral RH data+8 bit decimal RH

data+8 bit integral T data+8 bit decimal T data".

When MCU send start signal, DHT22 change from low-power-consumption-mode to running-mode. When MCU

finishs sending the start signal, DHT22 will send response signal of 40-bit data that reflect the relative humidity

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Aosong Electronics Co.,Ltd

and temperature information to MCU. Without start signal from MCU, DHT22 will not give response signal to

MCU. One start signal for one time's response data that reflect the relative humidity and temperature information

from DHT22. DHT22 will change to low-power-consumption-mode when data collecting finish if it don't receive

start signal from MCU again.

1) Check bellow picture for overall communication process:

Host computer send out

start signal. Data transmission finished,

Sensor send out and RL pull up bus's voltage

response signal. Output data: 1bit"0" for next transmission

Pull up and wait Host's signal Sensor's signal Output data: 1bit "1"

response from sensor Sensor pull down

Pull up voltage and get bus's voltage

ready for sensor's output.

Single-bus output

---2) Step 1: MCU send out start signal to DHT22

Data-bus's free status is high voltage level. When communication between MCU and DHT22 begin, program of

MCU will transform data-bus's voltage level from high to low level and this process must beyond at least 1ms to

ensure DHT22 could detect MCU's signal, then MCU will wait 20-40us for DHT22's response.

(13)

Aosong Electronics Co.,Ltd

Host computer send start signal Sensor send out response signal

and keep this signal at least

1ms

and keep this signal 80us

Host pull up voltage

-and wait sensor's response Sensor pull up bus's voltage

Signal from host Start data transmission

Signal from sensor

Single-bus signal

Step 2: DHT22 send response signal to MCU

When DHT22 detect the start signal, DHT22 will send out low-voltage-level signal and this signal last 80us as

response signal, then program of DHT22 transform data-bus's voltage level from low to high level and last 80us

for DHT22's preparation to send data.

Check bellow picture for step 2:

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Aosong Electronics Co.,Ltd

Start transmit 1bit data Start transmit next bit data

26-28us voltage-length means data "0"

Host signal Sesnor's signal

Single-bus signal

Step 3: DHT22 send data to MCU

When DHT22 is sending data to MCU, every bit's transmission begin with low-voltage-level that last 50us, the

following high-voltage-level signal's length decide the bit is "1" or "0".

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Aosong Electronics Co.,Ltd

70us voltage-length means 1bit data "1"

Start transmit 1bit data Start transmit next bit data

Host signal Sesnor's signal

Single-bus signal

If signal from DHT22 is always high-voltage-level, it means DHT22 is not working properly, please check the

electrical connection status.

7. Electrical Characteristics:

Item

Condition

Min

Typical

Max

Unit

Power supply

DC

3.3

5

6 V

Current supply

Measuring

1

1.5 mA

Stand-by

40 Null

50 uA

Collecting

period

Second

2 Second

*Collecting period should be : >2 second.

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Aosong Electronics Co.,Ltd

8. Attentions of application:

(1) Operating and storage conditions

We don't recommend the applying RH-range beyond the range stated in this specification. The DHT22 sensor

can recover after working in non-normal operating condition to calibrated status, but will accelerate sensors'

aging.

(2) Attentions to chemical materials

Vapor from chemical materials may interfere DHT22's sensitive-elements and debase DHT22's sensitivity.

(3) Disposal when (1) & (2) happens

Step one: Keep the DHT22 sensor at condition of Temperature 50~60Celsius, humidity <10%RH for 2 hours;

Step two: After step one, keep the DHT22 sensor at condition of Temperature 20~30Celsius, humidity

>70%RH for 5 hours.

(4) Attention to temperature's affection

Relative humidity strongly depend on temperature, that is why we use temperature compensation technology to

ensure accurate measurement of RH. But it's still be much better to keep the sensor at same temperature when

sensing.

DHT22 should be mounted at the place as far as possible from parts that may cause change to temperature.

(5) Attentions to light

Long time exposure to strong light and ultraviolet may debase DHT22's performance.

(6) Attentions to connection wires

The connection wires' quality will effect communication's quality and distance, high quality shielding-wire is

recommended.

(7) Other attentions

* Welding temperature should be bellow 260Celsius.

* Avoid using the sensor under dew condition.

* Don't use this product in safety or emergency stop devices or any other occasion that failure of DHT22 may

cause personal injury.

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Email: info@sunrom.com or sunrom@gmail.com

Visit us at http://www.sunrom.com

Document: Datasheet Date: 28-Jul-08 Model #: 3190 Product’s Page: www.sunrom.com/p-510.html

Light Dependent Resistor - LDR

Two cadmium sulphide(cds) photoconductive cells with spectral responses

similar to that of the human eye. The cell resistance falls with increasing light

intensity. Applications include smoke detection, automatic lighting control,

batch counting and burglar alarm systems.

Applications

Photoconductive cells are used in many different types of circuits and

applications.

Analog Applications

• Camera Exposure Control

• Auto Slide Focus - dual cell

• Photocopy Machines - density of toner

• Colorimetric Test Equipment

• Densitometer

• Electronic Scales - dual cell

• Automatic Gain Control – modulated light

source

• Automated Rear View Mirror

Digital Applications

• Automatic Headlight Dimmer

• Night Light Control

• Oil Burner Flame Out

• Street Light Control

• Absence / Presence (beam breaker)

• Position Sensor

Electrical Characteristics

Parameter

Conditions

Min

Typ

Max

Unit

Cell resistance

1000 LUX

10 LUX

Power Dissipation

100 mW max

Operating

Temperature

(18)

Guide to source illuminations

Light source Illumination

LUX

Moonlight

0.1 60W Bulb at 1m

50 1W MES Bulb at 0.1m

100 Fluorescent Lighting

500 Bright Sunlight

30,000

Sensitivity

The sensitivity of a photodetector is the relationship between the light falling on the device and the

resulting output signal. In the case of a photocell, one is dealing with the relationship between the

incident light and the corresponding resistance of the cell.

FIGUR E 2RESIST ANCE AS FUNCT ION OF ILLU MINAT ION

Spectral Response

Figure 3 Spectral response

Like the human eye, the relative sensitivity of a

photoconductive cell is dependent on the

wavelength (color) of the incident light. Each

photoconductor material type has its own unique

spectral response curve or plot of the relative

response of the photocell versus wavelength of

light.

FIGUR E 1CIRCUITSYMBOL

R1

(19)

Dimensions

(20)

(21)

5V

Buy Technical_Documents Tools &Software

Support & Community

MAX232, MAX232I

SLLS047M – FEBRUARY 1989 – REVISED NOVEMBER 2014

MAX232x Dual EIA-232 Drivers/Receivers

1 Features

3 Description

The MAX232 device is a dual driver/receiver that

1

• Meets or Exceeds TIA/EIA-232-F and ITU

includes a capacitive voltage generator to supply

Recommendation V.28

TIA/EIA-232-F voltage levels from a single 5-V

• Operates From a Single 5-V Power Supply With

_{supply. Each receiver converts TIA/EIA-232-F inputs}

1.0-µF Charge-Pump Capacitors

_{to 5-V TTL/CMOS levels. These receivers have a}

typical threshold of 1.3 V, a typical hysteresis of 0.5

• Operates up to 120 kbit/s

V, and can accept ±30-V inputs. Each driver converts

• Two Drivers and Two Receivers

TTL/CMOS input levels into TIA/EIA-232-F levels.

• ±30-V Input Levels

• Low Supply Current: 8 mA Typical

Device Information

(1)

ORDER NUMBER PACKAGE (PIN) BODY SIZE

• ESD Protection Exceeds JESD 22

SOIC (16) 9.90 mm × 3.91 mm

– 2000-V Human-Body Model (A114-A)

SOIC (16) 10.30 mm × 7.50 mm

• Upgrade With Improved ESD (15-kV HBM) and

MAX232x

PDIP (16) 19.30 mm × 6.35 mm

0.1-µF Charge-Pump Capacitors is Available With

SOP (16) 10.3 mm × 5.30 mm

the MAX202 Device

(1) For all available packages, see the orderable addendum at the end of the datasheet.

(22)

MAX232, MAX232I

SLLS047M – FEBRUARY 1989 – REVISED NOVEMBER 2014 www.ti.com

5 Revision History

Changes from Revision L (March 2004) to Revision M Page

• Removed Ordering Information table. ... 1 • Added Handling Rating table, Feature Description section, Device Functional Modes, Application and

Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation

(23)

1

www.ti.com SLLS047M – FEBRUARY 1989 – REVISED NOVEMBER 2014

6 Pin Configuration and Functions

Top View

Pin Functions

PIN

TYPE DESCRIPTION

NAME NO.

C1+ 1 — Positive lead of C1 capacitor

VS+ 2 O Positive charge pump output for storage capacitor only

C1- 3 — Negative lead of C1 capacitor

C2+ 4 — Positive lead of C2 capacitor

C2- 5 — Negative lead of C2 capacitor

VS- 6 O Negative charge pump output for storage capacitor only T2OUT, T1OUT 7, 14 O RS232 line data output (to remote RS232 system) R2IN, R1IN 8, 13 I RS232 line data input (from remote RS232 system) R2OUT, R1OUT 9, 12 O Logic data output (to UART)

T2IN, T1IN 10, 11 I Logic data input (from UART)

GND 15 — Ground

(24)

MAX232, MAX232I

7 Specifications

7.1 Absolute Maximum Ratings

(1)

over operating free-air temperature range (unless otherwise noted)

MIN MAX UNIT

VCC Input Supply voltage range(2) –0.3 6 V

VS+ Positive output supply voltage range VCC– 0.3 15 V

VS– Negative output supply voltage range –0.3 –15 V

T1IN, T2IN –0.3 VCC+ 0.3

VI Input voltage range V

R1IN, R2IN ±30

T1OUT, T2OUT VS–– 0.3 VS++ 0.3

VO Output voltage range V

R1OUT, R2OUT –0.3 VCC+ 0.3

Short-circuit duration T1OUT, T2OUT Unlimited

TJ Operating virtual junction temperature 150 °C

(1) Stresses beyond those listed underAbsolute Maximum Ratingsmay cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated underRecommended Operating Conditionsis not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) All voltages are with respect to network GND.

7.2 Handling Ratings

MIN MAX UNIT

Tstg Storage temperature range -65 150 °C

Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all 0 2000 pins(1)

V(ESD) Electrostatic discharge V

Charged device model (CDM), per JEDEC specification 0 1000 JESD22-C101, all pins(2)

(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. (2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

7.3 Recommended Operating Conditions

MIN NOM MAX UNIT

VCC Supply voltage 4.5 5 5.5 V

VIH High-level input voltage (T1IN,T2IN) 2 V

VIL Low-level input voltage (T1IN, T2IN) 0.8 V

R1IN,

Receiver input voltage ±30 V

R2IN

MAX232 0 70

TA Operating free-air temperature °C

MAX232I –40 85

7.4 Thermal Information

MAX232xD MAX232xDW MAX232xN MAX232xNS

THERMAL METRIC(1) _SOIC _{SOIC wide} _PDIP _SOP _UNIT

16 PINS 16 PINS 16 PINS 16 PINS

R_θJA Junction-to-ambient thermal resistance 73 57 67 64 °C/W

(25)

MAX232, MAX232I

7.6 Electrical Characteristics –– Driver

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)

PARAMETER TEST CONDITIONS(1) _{MIN TYP}(2) _MAX _UNIT

VOH High-level output voltage T1OUT, T2OUT RL= 3 kΩto GND 5 7 V

VOL Low-level output voltage(3) T1OUT, T2OUT RL= 3 kΩto GND –7 –5 V

rO Output resistance T1OUT, T2OUT VS+= VS–= 0, VO= ±2 V 300 Ω

IOS(4) Short-circuit output current T1OUT, T2OUT VCC= 5.5 V, VO= 0 V ±10 mA

IIS Short-circuit input current T1IN, T2IN VI= 0 200 µA

(1) Test conditions are C1–C4 = 1μF at VCC= 5 V ± 0.5 V (2) All typical values are at VCC= 5 V, TA= 25°C.

(3) The algebraic convention, in which the least-positive (most negative) value is designated minimum, is used in this data sheet for logic voltage levels only.

(4) Not more than one output should be shorted at a time.

7.7 Electrical Characteristics –– Receiver

PARAMETER TEST CONDITIONS(1) _MIN _TYP(2) _MAX _UNIT

VOH High-level output voltage R1OUT, R2OUT IOH= –1 mA 3.5 V

VOL Low-level output voltage(3) R1OUT, R2OUT IOL= 3.2 mA 0.4 V

Receiver positive-going input threshold

(3) The algebraic convention, in which the least-positive (most negative) value is designated minimum, is used in this data sheet for logic voltage levels only.

7.8 Switching Characteristics

PARAMETER TEST CONDITIONS(1) MIN TYP(1) MAX UNIT

SR Driver slew rate RL = 3 kΩto 7 kΩ, seeFigure 4 30 V/μs

SR(t) Driver transition region slew rate seeFigure 5 3 V/μs

Data rate One TOUT switching 120 kbit/s

Receiver propagation delay time,

tPLH®) _{low- to high-level output} TTL load, seeFigure 3 500 ns

Receiver propagation delay time,

tPHL®) _{high- to low-level output} TTL load, seeFigure 3 500 ns

(26)

±12

Load resistance (k )

VOL

7.9 Typical Characteristics

(27)

≤10 ns

VCC

R1IN or R2IN

R1OUT or R2OUT

RL = 1.3 kΩ

See Note C

CL = 50 pF (see Note B)

TEST CIRCUIT

≤10 ns

Input

Output

tPHL tPLH

1.5 V

VOL VOH 0 V 3 V

10%

90% 50%

500 ns

WAVEFORMS 1.5 V 90%

50% 10% Pulse

Generator (see Note A)

MAX232, MAX232I

8 Parameter Measurement Information

A. The pulse generator has the following characteristics: ZO= 50Ω, duty cycle≤50%. B. CLincludes probe and jig capacitance.

C. All diodes are 1N3064 or equivalent.

(28)

EIA-232 Output T1IN or T2IN T1OUT or T2OUT

CL = 10 pF

Parameter Measurement Information (continued)

A. The pulse generator has the following characteristics: ZO= 50Ω, duty cycle≤50%. B. CLincludes probe and jig capacitance.

(29)

5V

9 Detailed Description

9.1 Overview

The MAX232 device is a dual driver/receiver that includes a capacitive voltage generator using four capacitors to

supply TIA/EIA-232-F voltage levels from a single V supply. Each receiver converts TIA/EIA-232-F inputs to

5-V TTL/CMOS levels. These receivers have a typical threshold of 1.3 5-V, a typical hysteresis of 0.5 5-V, and can

accept ±30-V inputs. Each driver converts TTL/CMOS input levels into TIA/EIA-232-F levels. The driver, receiver,

and voltage-generator functions are available as cells in the Texas Instruments LinASIC™ library. Outputs are

protected against shorts to ground.

9.2 Functional Block Diagram

9.3 Feature Description

9.3.1 Power

The power block increases and inverts the 5V supply for the RS232 driver using a charge pump that requires

four 1-µF external capacitors.

9.3.2 RS232 Driver

Two drivers interface standard logic level to RS232 levels. Internal pull up resistors on TIN inputs ensures a high

input when the line is high impedance.

9.3.3 RS232 Receiver

Two receivers interface RS232 levels to standard logic levels. An open input will result in a high output on ROUT.

9.4 Device Functional Modes

9.4.1 V

CC

powered by 5V

The device will be in normal operation.

9.4.2 V

_CC

unpowered

When MAX232 is unpowered, it can be safely connected to an active remote RS232 device.

Table 1. Function Table Each Driver

(1)

INPUT OUTPUT

TIN TOUT

L H

H L

(30)

1µF NOTES: A. Resistor values shown are nominal.

B. Nonpolarized ceramic capacitors are acceptable. If polarized tantalum or electrolytic capacitors are used, they should be connected as shown. In addition to the 1-µF capacitors shown, the MAX202 can operate with 0.1-µF capacitors.

+ +

− = 1 µF

MAX232, MAX232I

Table 2. Function Table Each Receiver

(1)

INPUTS OUTPUT Open = disconnected input or connected driver off

10 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

10.1 Application Information

For proper operation add capacitors as shown in

Figure 6

. Pins 9 through 12 connect to UART or general

purpose logic lines. EIA-232 lines will connect to a connector or cable.

10.2 Typical Application

Figure 6. Typical Operating Circuit

(31)

VCC

Load resistance (k )

VOL

Typical Application (continued)

10.2.3 Application Curves

Figure 7. TOUT VOH & VOL vs Load Resistance, Both Figure 8. Driver to Receiver Loopback Timing Waveform Drivers Loaded

11 Power Supply Recommendations

The V

CC

voltage should be connected to the same power source used for logic device connected to TIN pins.

V

_CC

should be between 4.5V and 5.5V.

12 Layout

12.1 Layout Guidelines

Keep the external capacitor traces short. This is more important on C1 and C2 nodes that have the fastest rise

and fall times.

12.2 Layout Example

(32)

MAX232, MAX232I

13 Device and Documentation Support

13.1 Related Links

The table below lists quick access links. Categories include technical documents, support and community

resources, tools and software, and quick access to sample or buy.

Table 3. Related Links

TECHNICAL TOOLS & SUPPORT & PARTS PRODUCT FOLDER SAMPLE & BUY

DOCUMENTS SOFTWARE COMMUNITY

MAX232 Click here Click here Click here Click here Click here

MAX232I Click here Click here Click here Click here Click here

13.2 Trademarks

All trademarks are the property of their respective owners.

13.3 Electrostatic Discharge Caution

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

13.4 Glossary

SLYZ022

—

TI Glossary.

This glossary lists and explains terms, acronyms and definitions.

14 Mechanical, Packaging, and Orderable Information

(33)

PACKAGE OPTION ADDENDUM

Op Temp (°C) Device Marking

(4/5)

Samples

MAX232D ACTIVE SOIC D 16 40 Green (RoHS

& no Sb/Br)

CU NIPDAU Level-1-260C-UNLIM 0 to 70 MAX232

MAX232DE4 ACTIVE SOIC D 16 40 Green (RoHS

& no Sb/Br)

MAX232DG4 ACTIVE SOIC D 16 40 Green (RoHS

& no Sb/Br)

MAX232DR ACTIVE SOIC D 16 2500 Green (RoHS

& no Sb/Br)

CU NIPDAU | CU SN Level-1-260C-UNLIM 0 to 70 MAX232

MAX232DRE4 ACTIVE SOIC D 16 2500 Green (RoHS

& no Sb/Br)

MAX232DRG4 ACTIVE SOIC D 16 2500 Green (RoHS

& no Sb/Br)

MAX232DW ACTIVE SOIC DW 16 40 Green (RoHS

& no Sb/Br)

MAX232DWE4 ACTIVE SOIC DW 16 40 Green (RoHS

& no Sb/Br)

MAX232DWG4 ACTIVE SOIC DW 16 40 Green (RoHS

& no Sb/Br)

MAX232DWR ACTIVE SOIC DW 16 2000 Green (RoHS

& no Sb/Br)

MAX232DWRE4 ACTIVE SOIC DW 16 2000 Green (RoHS

& no Sb/Br)

MAX232DWRG4 ACTIVE SOIC DW 16 2000 Green (RoHS

& no Sb/Br)

MAX232ID ACTIVE SOIC D 16 40 Green (RoHS

& no Sb/Br)

CU NIPDAU Level-1-260C-UNLIM -40 to 85 MAX232I

MAX232IDE4 ACTIVE SOIC D 16 40 Green (RoHS

& no Sb/Br)

MAX232IDG4 ACTIVE SOIC D 16 40 Green (RoHS

& no Sb/Br)

(34)

PACKAGE OPTION ADDENDUM

Op Temp (°C) Device Marking

(4/5)

Samples

MAX232IDW ACTIVE SOIC DW 16 40 Green (RoHS

& no Sb/Br)

MAX232IDWG4 ACTIVE SOIC DW 16 40 Green (RoHS

& no Sb/Br)

MAX232IDWR ACTIVE SOIC DW 16 2000 Green (RoHS

& no Sb/Br)

MAX232IDWRE4 ACTIVE SOIC DW 16 2000 Green (RoHS

& no Sb/Br)

MAX232IDWRG4 ACTIVE SOIC DW 16 2000 Green (RoHS

& no Sb/Br)

MAX232IN ACTIVE PDIP N 16 25 Pb-Free

(RoHS)

CU NIPDAU N / A for Pkg Type -40 to 85 MAX232IN

MAX232INE4 ACTIVE PDIP N 16 25 Pb-Free

(RoHS)

CU NIPDAU N / A for Pkg Type -40 to 85 MAX232IN

MAX232N ACTIVE PDIP N 16 25 Pb-Free

(RoHS)

CU NIPDAU N / A for Pkg Type 0 to 70 MAX232N

MAX232NE4 ACTIVE PDIP N 16 25 Pb-Free

(RoHS)

CU NIPDAU N / A for Pkg Type 0 to 70 MAX232N

MAX232NSR ACTIVE SO NS 16 2000 Green (RoHS

& no Sb/Br)

(1)_{The marketing status values are defined as follows:} ACTIVE: Product device recommended for new designs.

LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.

NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.

PREVIEW: Device has been announced but is not in production. Samples may or may not be available.

OBSOLETE: TI has discontinued the production of the device.

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PACKAGE OPTION ADDENDUM

www.ti.com 30-Apr-2016

(3)_{MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.}

(4)_{There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.}

(5)_{Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation}

of the previous line and the two combined represent the entire Device Marking for that device.

(6)_{Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish}

value exceeds the maximum column width.

Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.

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TAPE AND REEL INFORMATION

*All dimensions are nominal

Device Package Type

Package Drawing

Pins SPQ Reel Diameter

(mm)

Reel Width W1 (mm)

A0 (mm)

B0 (mm)

K0 (mm)

P1 (mm)

W (mm)

Pin1 Quadrant

MAX232DR SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1

MAX232DRG4 SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1

MAX232DWR SOIC DW 16 2000 330.0 16.4 10.75 10.7 2.7 12.0 16.0 Q1

MAX232DWRG4 SOIC DW 16 2000 330.0 16.4 10.75 10.7 2.7 12.0 16.0 Q1

MAX232IDR SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1

MAX232IDWR SOIC DW 16 2000 330.0 16.4 10.75 10.7 2.7 12.0 16.0 Q1

MAX232IDWRG4 SOIC DW 16 2000 330.0 16.4 10.75 10.7 2.7 12.0 16.0 Q1

PACKAGE MATERIALS INFORMATION

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*All dimensions are nominal

Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)

MAX232DR SOIC D 16 2500 333.2 345.9 28.6

MAX232DR SOIC D 16 2500 367.0 367.0 38.0

MAX232DRG4 SOIC D 16 2500 333.2 345.9 28.6

MAX232DRG4 SOIC D 16 2500 367.0 367.0 38.0

MAX232DWR SOIC DW 16 2000 367.0 367.0 38.0

MAX232DWRG4 SOIC DW 16 2000 367.0 367.0 38.0

MAX232IDR SOIC D 16 2500 333.2 345.9 28.6

MAX232IDWR SOIC DW 16 2000 367.0 367.0 38.0

MAX232IDWRG4 SOIC DW 16 2000 367.0 367.0 38.0

PACKAGE MATERIALS INFORMATION

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HANWEI ELETRONICS CO.,LTD MQ-2 http://www.hwsensor.com

They are used in gas leakage detecting equipments in family and industry, are suitable for detecting

of LPG, i-butane, propane, methane ,alcohol, Hydrogen, smoke.

SPECI FI CAT ION S

A. Standard work condition

Symbol Parameter name Technical condition Remarks

Vc Circuit voltage 5V_±0.1 AC OR DC

Symbol Parameter name Technical condition Remarks

Tao Using Tem -20℃-50℃

Tas Storage Tem -20℃-70℃

RH Related humidity less than 95%Rh

O2 Oxygen concentration 21%(standard condition)Oxygen

concentration can affect sensitivity

minimum value is

Configuration A Configuration B

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HANWEI ELETRONICS CO.,LTD MQ-2 http://www.hwsensor.com

crust made by plastic and stainless steel net. The heater provides necessary work conditions for work of

sensitive components. The enveloped MQ-2 have 6 pin ,4 of them are used to fetch signals, and other 2 are used

for providing heating current.

Electric parameter measurement circuit is shown as Fig.2

Resistance value of MQ-2 is difference to various kinds and various concentration gases. So,When using

this components, sensitivity adjustment is very necessary. we recommend that you calibrate the detector for

1000ppm liquified petroleum gas<LPG>,or 1000ppm iso-butane<i-C4H10>concentration in air and use value

of

Load resistance that( R

L

) about 20 K

Ω

(5K

Ω

to 47 K

Ω

).

When accurately measuring, the proper alarm point for the gas detector should be determined after

considering the temperature and humidity influence.

Fig.3 is shows the typical

sensitivity characteristics of

the MQ-2 for several gases.

in their: Temp: 20℃、

Humidity: 65%、

O2 concentration 21%

RL=5kΩ

Ro: sensor resistance at 1000ppm of

H2 in the clean air.

Rs:sensor resistance at various concentrations of gases.

Fig.4 is shows the typical dependence of

the MQ-2 on temperature and humidity.

Ro: sensor resistance at 1000ppm of H2 in air

at 33%RH and 20 degree.

Rs: sensor resistance at 1000ppm of H2

at different temperatures and humidities.