"RGBDuino UNO compatible board designed and developed specialy for students to learn coding using a microcontroller. We named it RGBDuino UNO to encourage everyone to be a maker by getting started with this amazing board."
The original repository did not however contain any schematics nor hardware details, bom lists or details to help makers. This fork tries to change that. Either by reverse engineering or getting them to release the required files.
- Atmel ATmega328P microcontroller (As used on original Arduino UNO)
- Input USB 5V
- 500mA (Max) 3.3V Voltage regulator
- 10 blue leds and 2 RGB programable leds.
- Micro usb for power and programming using
- WCH CH341, USB to serial ic with speeds from 50bps to 2Mpbs, supporting 5v and 3.3v.
- Buzzer for "music"
- 1 programmable button (aka, user Input to be defined)
- 1 reset button
- A cute Duck or awesome Makergirl design printed on the PCB
Pin D9 is connected to the signal pin of the buzzer module Or, according to PDF, pin 8. Switch the buzzer to off, to use pin8 for different things. Pin 12 and Pin 13 are connected to the two RGB led. Pin2 should be the user button (next to reset, be carefull) Its the one close to the header, reset is to the outside of the board.
After email contact with seller on Aliexpress, Miss C. Chan send me sch.pdf. The apparently Altium designer made schematics in PDF format. Creation date: 20200910
Included is an empty text file, the title seems to be in Thai and reads:
How do you know? (ทไร๙ฦ๗ฒโสิด๚ย๋.txt)
or What is 9? 7?
The original included driver package did not seem to be from the original hardware manufacturer, as such, its been deleted. Users are adviced to see if drivers for the WCH CH341 are automaticly installed (By Windows or Linux) or find a solution, drivers on the following website: http://wch-ic.com/search?q=CH341&t=downloads
A backup has been made using the following command with extra verbosity. also backups from eeprom and fuses can be found. It is not expected those to be in any special condition. (also odd the eeprom contains the first bit from flash?)
$ avrdude -c arduino -D -P /dev/ttyUSB0 -n -p m328p -v -v -v -Uflash:r:flash.hex:iIts output:
avrdude: Version 6.3, compiled on Jul 7 2020 at 19:38:43
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch
System wide configuration file is "/etc/avrdude.conf"
User configuration file is "/home/user1/.avrduderc"
User configuration file does not exist or is not a regular file, skipping
Using Port : /dev/ttyUSB0
Using Programmer : arduino
AVR Part : ATmega328P
Chip Erase delay : 9000 us
PAGEL : PD7
BS2 : PC2
RESET disposition : dedicated
RETRY pulse : SCK
serial program mode : yes
parallel program mode : yes
Timeout : 200
StabDelay : 100
CmdexeDelay : 25
SyncLoops : 32
ByteDelay : 0
PollIndex : 3
PollValue : 0x53
Memory Detail :
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
eeprom 65 20 4 0 no 1024 4 0 3600 3600 0xff 0xff
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
flash 65 6 128 0 yes 32768 128 256 4500 4500 0xff 0xff
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
lfuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
hfuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
efuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
lock 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
calibration 0 0 0 0 no 1 0 0 0 0 0x00 0x00
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
signature 0 0 0 0 no 3 0 0 0 0 0x00 0x00
Programmer Type : Arduino
Description : Arduino
Hardware Version: 3
Firmware Version: 4.4
Vtarget : 0.3 V
Varef : 0.3 V
Oscillator : 28.800 kHz
SCK period : 3.3 us
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.00s
avrdude: Device signature = 0x1e950f (probably m328p)
avrdude: safemode read 1, lfuse value: 0
avrdude: safemode read 2, lfuse value: 0
avrdude: safemode read 3, lfuse value: 0
avrdude: safemode: lfuse reads as 0
avrdude: safemode read 1, hfuse value: 0
avrdude: safemode read 2, hfuse value: 0
avrdude: safemode read 3, hfuse value: 0
avrdude: safemode: hfuse reads as 0
avrdude: safemode read 1, efuse value: 0
avrdude: safemode read 2, efuse value: 0
avrdude: safemode read 3, efuse value: 0
avrdude: safemode: efuse reads as 0
avrdude: reading flash memory:
Reading | ################################################## | 100% 4.21s
avrdude: writing output file "flash.hex"
avrdude: safemode read 1, lfuse value: 0
avrdude: safemode read 2, lfuse value: 0
avrdude: safemode read 3, lfuse value: 0
avrdude: safemode: lfuse reads as 0
avrdude: safemode read 1, hfuse value: 0
avrdude: safemode read 2, hfuse value: 0
avrdude: safemode read 3, hfuse value: 0
avrdude: safemode: hfuse reads as 0
avrdude: safemode read 1, efuse value: 0
avrdude: safemode read 2, efuse value: 0
avrdude: safemode read 3, efuse value: 0
avrdude: safemode: efuse reads as 0
avrdude: safemode: Fuses OK (E:00, H:00, L:00)
avrdude done. Thank you.
$ avrdude -c arduino -D -P /dev/ttyUSB0 -n -p m328p -v -v -v -Ueeprom:r:eeprom.hex:iOriginal project doesnt seem to provide any license information. As per indicated image and words, its asummed to be OSHW, The AdafruitNeoPixel library, wich is included by the original repo: GNU GPL version 3
Original repository (for if it ever goes away and youd use archive)