Quick to build. Fast enough to finish in a class. Would be better if it had a power switch and English instructions.
USB to ESP8266 Serial Module TTL Wifi ESP-01 CH340G Developent Board Adapter CA
Feb 18, 2019
Convenient way to program ESP-01 after a small moification
You really need to add a push button to make it work right. I don't know why it wasn't build with one in the first place. Search for the instructable called USB-to-ESP-01-Board-Adapter-Modification.
2018 New 3800mAh Extended Battery for SAMSUNG i9600 GALAXY S5 Replcement US