Flashing Sonoff without soldering header pins.
Sonoff Basic: https://amzn.to/2MC3cAh
Jumper Wires: https://amzn.to/2MbaHPF
Header Pins: https://amzn.to/2MKcWsq
Programmer: https://amzn.to/2IOdsnY
Sonoff Basic: https://amzn.to/2MC3cAh
Jumper Wires: https://amzn.to/2MbaHPF
Header Pins: https://amzn.to/2MKcWsq
Programmer: https://amzn.to/2IOdsnY