What is it?

Using an ESP32-S3 controller, this device can sample upto 8 analog inputs, any device on the I2C or UART interface, storing the data to an onboard SD card, and or sending to a server over WIFI

Why did you make it?

Designed and built to monitor the discharge cycle of many batteries at once. With the server interface I could keep an eye on voltages from anywhere. Has been used further to sample particle monitors, store data to a webServer for tracking with LEDs locally to show immediate levels of bad particles output from a laser cutter.

What makes it special?

The inputs can be from a multitude of devices, voltages can be measured from sensors like temperature, light or humidity for example. Others can be monitored over I2C like particle monitors, accelerometers or even more ADCs. The UART can be used for taken data from a GPS receiver for example

What is received?

Buyers will receive an all parts soldered and tested product with example code that can be saved onto the ESP32, with also example code that can run on a server to receive data to publish onto websites