You will need the following parts for this tutorial:
- 1x Adafruit IO compatible Feather
- 3x jumper wires
- 1x 10k resistor
- 1x photocell
You will need to connect the following pins to the photocell and 10k resistor:
- Feather GND to one leg of the 10k resistor
- The second leg of the 10k resistor to one leg of the photocell
- Feather A0 (or ADC) to the same leg of the photocell as the 10k resistor.
- Feather 3V to the second leg of the photocell
Note: Resistors and photocells are not polarized, so they can be connected to the circuit in either direction.
You may want to try different resistor values depending on the exact light sensor and ambient lighting!
