Components
The parts that turn a working breadboard into a finished build — relay modules, logic level shifters, I2C port expanders, enclosures, standoffs and battery holders. Level shifters matter more than most people expect: a 5V Arduino output will damage a 3.3V ESP32 or Pi pin.
5V Relay Module — 8 Channel
NZ$24.90
5V Relay Module — 4 Channel
NZ$14.90
5V Relay Module — 2 Channel
NZ$9.90
5V Relay Module — 1 Channel
NZ$6.90
ADS1115 16-Bit I2C ADC Module
NZ$12.90
4x4 Membrane Matrix Keypad
NZ$7.90
KY-040 Rotary Encoder Module
NZ$5.90











