Info

product url - NWI1252-dat

Board Map, Dimension, Pins, chip info, Use Guide, Setup Jumper, etc.

red box

  • data communication LED indicator
  • spare pins
    • IO6 IO7 IO8
    • ADC IO2 D+ TXD 3V3
    • IO1 IO3 D- RXD GND
  • EN button and flash button = IO10
  • power LED
  • flash button programmable LED = IO9

yello box

  • Power input

Green Box

  • USB A native USB
  • micro USB native USB, same

Blue Box DB9 - V2

  • set DB9_VIN jumper to give supply to pin 6 (from bottom left 1)
  • set shared to left 2 for RS232, for share pin 2 (from top right 2)
  • set shared to left 2 for RS485, for share pin 2 (from top right 2)

Blue box

  • jumper, RS232 / RS485 output selector
  • GND / +5V
  • DB9 connector, includes a jumper selector for pin2

  • cable terminal output RS232 / RS485,

  • DB9-dat

  • dcdc-down-dat == 3A, Wide Input Range, Step-Down Converter

Wide input voltage range:

– TPS5430: 5.5V to 36V

main controller part SCH

Applications, category, tags, etc.

Demo Code and Video

note the RS232-dat interface should be twisted, wire as TX-RX and RX-TX

test demo

default flash data

esptool-dat 

"C:\Users\Administrator\AppData\Local\Arduino15\packages\esp32\tools\esptool_py\5.1.0/esptool.exe" --chip esp32c3 --port "COM15" --baud 921600  --before default-reset --after hard-reset write-flash  -z --flash-mode keep --flash-freq keep --flash-size keep 0x0 "C:\Users\Administrator\AppData\Local\arduino\sketches\45267CD3CF422CD163E590AF8B86E223/NWI1254-3.ino.bootloader.bin" 0x8000 "C:\Users\Administrator\AppData\Local\arduino\sketches\45267CD3CF422CD163E590AF8B86E223/NWI1254-3.ino.partitions.bin" 0xe000 "C:\Users\Administrator\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.1/tools/partitions/boot_app0.bin" 0x10000 "C:\Users\Administrator\AppData\Local\arduino\sketches\45267CD3CF422CD163E590AF8B86E223/NWI1254-3.ino.bin"

update logs and issues

apps

ref

Table of Contents

https://www.electrodragon.com