Quantity   Component name
1 × ESP-12F / ESP8266 wifi capable system-on-chip
1 × RFM110W radio transmitter module
1 × Tact switch
4 × 10 k Ohm 1206 SMD resistor
2 × 220 Ohm 1206 SMD resistor
1 × AMS1117 3.3V Power Management ICs / Linear Voltage Regulators and LDOs
1 × LED (red) 1206 SMD 2.0V
1 × LED (yellow) 1206 SMD 2.0V
1 × 4.7 k Ohm 1206 SMD resistor
2 × 22uF tantalum SMD-A capacitor
2 × 100nF ceramic 1206 capacitor