Playground for

TTGO WiFi & Bluetooth Battery ESP32 0.96 inch OLED development tool

and Nextion Enhanced NX4832K035_11 - Generic 3.5'' HMI Touch Display

TTGO Features:

• When you do some ESP32 projects you must hate to add a power bank to provide the power
• This tiny board could solve such problems
• A LG 3000mAH 18650 battery could make ESP32 run 17 hours or more
• 18650 charging system integrated.
• Indicate LED inside (Green means full & Red means charging)
• Charging and working could be at the same time.
• 1 Switch could control the power
• 1 extra LED could be programmed(Connected with GPIO16[D0])
• 0.5A charging current
• 1A output
• Over charge protection
• Over discharge protection
• Full ESP32 pins break out

Nextion Features:

• Nextion Enhanced NX4832K035 is a 3.5'' HMI TFT display,
• with 32MB Flash data storage space,
• 1024 byte EEPROM,
• 8192 byte RAM,
• GPIO support, to control external devices.

Connecting TTGO ESP32 and Nextion:

TTGO	Nextion
5V	5V
GND	GND
21	TX
22	RX

Install and build:

• You must use / install platformio.
• Copy ttgo-oled1306-led16-battery.json and pins_arduino.h to their directories or change [env:ttgo-oled1306-led16-battery] in platformio.ini to your boardname. See "Board and Pin Definitions for platformio"
• You need the nextion library from this package. The most important changes are in nexconfig.h, nexhardware.h and nexhardware.cpp.