I like Internet of Things and robotics, so DIY NodeMCU Lua 2WD Open Source ESP8266 WiFi Smart Car Kit was a good match for this to test. DIY NodeMCU Lua 2WD Open Source ESP8266 WiFi Smart Car Kit is a WiFi RC smart car that is designed and developed based on ESP-12E from ESP8266. It can be controlled by mobile phone app and PC (kit can work as WiFi AP or STA). The controller in the robot uses NodeMCU firmware, so it should be easy to modify the applications or write your own as the control program is written using Lua scripting language.
The kit includes the mechanical parts, controller board and two motors. The kit runs on four AA batteries (battery holder was included in the kit, batteries not included). This is quite good set of stuff at pretty reasonable around 20 Euros price (around 22 USD).
Unboxing the kit:
The kit comes with one page paper document that describes building the mechanics.
More documentation for the kit can be downloaded for the DOIT official site www.doit.am and from https://smartarduino.gitbooks.io/user-manual-for-wifi-car-by-nodemcu-doitcar-/content/index.html
Next part is building the kit, but that’s on another posting.