I request you to guide that how to connect the SPEC sensor make 968-034 DGS-CO DIGITAL GAS SENSOR MODULE into aurduino nano
@ISOBALAJI, by chance have you seen this post:
and the documentation listed? While it’s a different sensor, it’s a very similar family, just reference the datasheet for analog output parameters.
Thanks for your reply , I am very basic learner it is a 1684-1034-ND -DGS-CO digital co gas sensor module with USB port,
Its is provided with UART to USB adapter, My question is how to connect this with Aurduino nano
@ISOBALAJI, well from the datasheet:
We can find this pinout:
So you will need 4 wires from your Arduino connected like so:, V+ (3.3V), GND (GND), RXD (TXD), and TXD (RXD).
Next you’ll need to setup your Arduino sketch to be in this mode:
Thanks for your reply, The CO sensor reads output varies from 10 ppm to 99 ppm at atmospheric condition. Shall I need to calibrate or any other options are there to get correct readings. I have to sense from 1 ppm range. If i need to perform calibration kindly guide me.
@ISOBALAJI, the data sheet has a recommended calibration procedure you should follow:
The DataSheet states: Resolution: 0.1 ppm (1: Based on Standard Deviation of noise at zero, 1 Hz measurement 60 second averaging.)