comparison to arduino atmega328
| pin | LGT | arduino | note |
|---|---|---|---|
| pin3 | PE4 | GND | extra pin |
| pin6 | PE5 | VCC | extra pin |
| pin18 | PE0/SWC | AVCC | prog port |
| pin21 | PE2/SWD | GND | prog port |
common pin
- pin 4 = VCC
- pin 5 = GND
Sketch uploads By Arduino IDE
- Pre-loaded bootloder. Just select corresponding board to upload sketch, refer to bootloader sketch below
- Programming pin port same as FTDI FT232-dat, same as arduino pro mini
- A backup method for without DTR, just hold down RESET button when "compiling", then release when "uploading".
bootloader
nullab board
- most compatible, please use this one
- Nullab Nano/ Maker Nano
- install by this - https://nulllab.coding.net/p/lgt/d/nulllab_lgt_arduino/git/raw/master/package_nulllab_boards_index_zh.json
old 1
https://github.com/LGTMCU/Larduino_HSP Installation:
- Unzip master.zip
- Copy the [hardware] directory to Arduino's sketchbook directory (see below to find out where it normally resides)
- Restart Arduino, you will see new board from [Tools]->[Board] menu.
old 2 bootloader
- Better not used for experiment, your often daily programming learning or testing, although no problem, but if unexpected error cause the board bricked, you need special programmer to re-programme the bootloader.
- Good to migrate to a low cost board instead of original expensive board.
- Same way to upload sketch as pro mini, notice to choose the board
- 8F328P - original IC bootloader, please use this one
- 8F328D - compatible, can also upload code, but don't know if any unknow error.
- Pro mini - also can upload, but active very wired
Chip Note
- crystal is not soldered, it can work without crystal, unlike atmega328
Programmer
- arduino UNO can pretend as a chip programmer
- please contact us if you need to order original programmer
demo
https://www.youtube.com/shorts/CL2-iH4KWQQ