Nextion LCD for Duplex hotSPOT, RPi hotSPOT with fan, Repeater kit board

For Duplex hotSPOT

The are two ways,

1. Use modem in the hotSPOT board, 

4PIN show "LCD", pi-star Config MMDVM Display Type select Nextion -> Modem
HS RXD to Nextion TX
HS TXD to Nextion RX
HS 5V   to Nextion 5V
HS GND to Nextion GND

for Ver1.0.1( !! VCC,GND not same as Ver1.0)

Pi-Star Setting display type

2. Use USB to TTL adapter,

then in pi-star Config MMDVM Display Type select Nextion -> /dev/ttyUSB0

Note: Some USB2TTL adapt not work, had tested CP2102 / CH340 is OK, USB-STC-ISP do not work.
TTL RXD to Nextion TX
TTL TXD to Nextion RX
TTL 5V   to Nextion 5V
TTL GND to Nextion GND

For RPi hotSPOT with fan

1 Use board 4 PINs Display interface, follow the order.

Warning! Can Not Reversal 5V and GND！

2 Use USBtoTTL Adapter

For Repeater kit board

Just can use USBtoTTL Adapter, STM32F105 without serial interface

Nextion firmware download 

From bi7jta ,add show IP address

https://github.com/nano-mmdvm/Duplex_hotSPOT/tree/master/nextion

From G4KLX

https://github.com/g4klx/MMDVMHost/tree/master/Nextion_G4KLX

From facebook group

https://www.facebook.com/groups/Nextion/

About TJC clone LCD ,you can also find in facebook group