Request for AFE Board Schematic for Gravity NH3 Sensor

Hi DF Robot Team,

 

My name is Dhruvit, and I am developing an environmental sensor node to measure various air parameters. For specific ammonia measurements, I have selected your Gravity NH3 factory-calibrated sensor.

 

I would like to use this sensor with I2C communication, but as it currently relies on the analog front-end (AFE) board included in the sensor kit, I have encountered some challenges:

 

 

1. The separate AFE board and sensor make it difficult to optimize my node for bulk manufacturing. 2. Connecting the AFE board to my main control board requires additional wires, which increases the BOM cost due to the need for extra connectors and cables. 

Would it be possible for you to provide the schematic of the AFE board included in the kit? Having the schematic would allow me to integrate the AFE circuitry directly onto my PCB, enabling me to connect the sensor using pogo pins alongside other sensors. This adjustment would significantly streamline the assembly process and reduce costs in my design.

 

I hope you understand my request, and I look forward to your response.

 

Thanks and Regards,
Dhruvit Bhimani