The flammable gas (hydrogen) sensor pre-calibration module FSM-10H-01 is a module equipped with the Fero semiconductor sensor TGS2610-D00, has a good durability and high stability. This module provides a PWM output that is proportional to the detected concentration (a memory in the module, pre-derived data storage is factory pre-deserved), and the module can also detect the sensor disconnection and short circuit failure. The module has a wide range of operating temperatures. Further, such as methane (CH4), propane (C3H8), hydrogen (H2), etc., the intersection sensitivity of the organic gas is very low, and the tolerance of the silicon compound is better, and it is more suitable for harsh environments. Commonly used in flammable gas leak detection, civil LPG detection and alarm, portable gas detector, industrial detector, hydrogen leak detection, battery system, transformer maintenance, new energy automotive-hydrogen fuel cell drive and other occasions. How does FSM-10H-01 use? How do FSM-10H-01 debug tests in the computer? Simple introduction is as follows: 1. Tool preparation FSM-10H-01 module (including cable), computer, serial debug assistant, PL2303 (USB turn serial port), USB turn TTL serial line, lighter one 2 The computer side is installed serial debuggers and PL2303 drive; USB turns TTL serial line, connects the combustible gas detection module, plug in computer, sensor pin definition, and connection mode as follows: Sensor 3 pin is an SDA-RXD sensor in the serial port 4 pin is + 5V-connected serial port in the serial port is GND-connected to the power supply negative module in the serial port in the actual pins: 2. After power is turned on, open the serial interface debugging assistant software, serial port configuration and communication Parameter Settings (1) Serial Volume Configuration Open the computer device manager, understand the serial number information (2) communication parameter configuration, mainly set the baud rate, check bit, data bit, stop bit, (reference example) 3. Click to connect, Open the serial port, the serial debugging assistant automatically receives the receipt uploaded by the combustible gas detection module, and uploads 16-byte 16-en-data code. 1) In the case where there is no detectable gas, the data output defaults to 02) act as a test gas with a lighter gas, in which case gas concentration data output 4. Data reading mode (read data format is as follows) where FSM-10H -01, the output data valid byte is 6 bytes, where the data transmitted data is directly concentrated, and the unit is ppm, range: 0-4000ppm, the gas concentration data has two bytes, respectively, 5, 6 words, respectively Festival, high in front, low. From the above test data as an example to briefly introduce: The test has a gas concentration value of 0050, and the number of converted to 10 is: 80 ppmfsm-10h-01 has USART and PWM output mode, then There are two wiring methods, how to combine product circuit design and precautions in MCU? Simple introduction is as follows: If you choose USART output, because FSM-10H-01 is 5V
TTL level output, if the MCU is 5V power supply, the sensor pin 4 picks + 5VDC, pin 6 GND, pin 3
SDA is connected to the MCU's RXD, 1, 2, 5 foot is not connected, 7 foots can not be connected, note that if the MCU is 3.3V power supply, you need to add level conversion chips or circuits to the communication line (SDA). communication. If the PWM output is selected, the sensor pin 4 picks + 5VDC, pin 6 ground GND, pin 3 SDA picks up the MCU IO port, 1, 2, 5 foot is not connected, 7 foot can not pick up. Read full text
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