Rototron highlights a project which adds solar powered sensors and home automation to a vegetable garden and transmits the data using MQTT for review and control on a mobile app.
An ESP32 running MicroPython will be used to poll the controller for voltage and current levels. A step down regulator will drop the 12 VDC output of the controller down to 5 V to power the ESP32 via its micro USB jack. The 3.3 V TTL communication lines from the MPPT charge controller are connected to the ESP32’s serial port.
See the video below and all the details of the project in the post here.
8-6-2021 (August 6, 2021) is the Snakiest day of the year and it’s also this year’s CircuitPython Day! The day highlights all things CircuitPython and Python on Hardware. See you there!
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.