Quantity   Component name
1 × ATMEGA324 Microcontroller
2 × MOC3021 Optocoupler
1 × 78L05 Linear Voltage Regulator
1 × ADS1118 Dual, Differential, 16-bit SPI ADC, with on-chip temperature sensor
2 × BT139 TRIAC
1 × TLP521-1 Optoisolator
1 × FT232RL USB-Serial conversion chip