Embedded systems
Budget: $10 – $30 USD
I have purchased 5x of these (https://www.semeatech.com/m/view.php?aid=162) C2H3CL-20 sensors and I would like to get a board that does the following things:
1. provides a solar panel input of 12v and charges a lipo
2. uses the lipo wake up a microcontroller (esp32 would be good) which would:
2.a: sample from a front end w the above sensor
2.b: store the sample on flash storage
2.c: send the data to a basic webserver or mqtt server or whatver
2.d: sleep again
Kindly select the components, capture the schematic and lay out the board, take the lead on firmware, and work with me through the testing i would be happy
My goal is to open-source this design and to hand these sensors out in response to the environmental disaster in Ohio in the US. I have a bunch of experience deploying sensors so I can hopefully help out a bit (or at least not get in the way with crazy features)... but if you can pull this off I would love to use you for many more small projects like this!
I would hope to print boards in the next couple weeks and then have firmware ready by mid march at the latest.
I will want you to also provide a case design I could laser cut that has the right considerations for airflow and fits the battery, has a port for the solar panel, etc...
Thank you! I really look forward to working with you!
1. provides a solar panel input of 12v and charges a lipo
2. uses the lipo wake up a microcontroller (esp32 would be good) which would:
2.a: sample from a front end w the above sensor
2.b: store the sample on flash storage
2.c: send the data to a basic webserver or mqtt server or whatver
2.d: sleep again
Kindly select the components, capture the schematic and lay out the board, take the lead on firmware, and work with me through the testing i would be happy
My goal is to open-source this design and to hand these sensors out in response to the environmental disaster in Ohio in the US. I have a bunch of experience deploying sensors so I can hopefully help out a bit (or at least not get in the way with crazy features)... but if you can pull this off I would love to use you for many more small projects like this!
I would hope to print boards in the next couple weeks and then have firmware ready by mid march at the latest.
I will want you to also provide a case design I could laser cut that has the right considerations for airflow and fits the battery, has a port for the solar panel, etc...
Thank you! I really look forward to working with you!