Quantity   Component name
1 × Atmega644 Microprocessors, Microcontrollers, DSPs / ARM, RISC-Based Microcontrollers
1 × ESP8266 (ESP-01 module) WiFi module
1 × MC34063A Power Management ICs / Switching Regulators and Controllers
1 × TLP627 Opto and Fiber Optic Semiconductors and ICs / Optocouplers and Optoisolators
1 × TLP627-4 Opto and Fiber Optic Semiconductors and ICs / Optocouplers and Optoisolators
1 × 74HCT07