- 1 Open Mobile Gadgets
- 2 Music Players including MP3 players
- 3 PG31 GPS RS232 Dev Board
- 4 PG31 GPS USB Dev Board
- 5 Chalk Roach
- 6 LED displays
- 7 Cellular Rotary Phone
- 8 Das Brewmeister!
- 9 Fermenter Controller
- 10 Home controller
- 11 Interactive Lock Box
- 12 Motor driver (H-bridge)
- 13 Atomic Microscope
- 14 BlueICE
- 15 Sortof-Networked RFID Reader
- 16 battery charger
An open source, open hardware mobile phone in its preliminary development.
Music Players including MP3 players
TRAXMOD Open source MOD music player for dsPIC/ARM microcontrollers.
A simple RS232 example project that takes 3.3V TTL serial and outputs to a super-common RS232 connection. Insto-NMEA!
A great example project using the CP2102 USB to TTL UART IC as well as some basic battery holder info.
Ultra simple microcontroller development board for Atmel ATmega32 = 16MHz, 2KB SRAM, 16KB Flash
- 24" Wall Clock A really big wall clock. Why? Well, cause it might look cool? Probably not. But we do use GPS to get the time! Groovy.
An indepth breakdown of the Port-O-Rotary. Some clues to help you avoid audio problems with the GM862.
An attempt to wirelessly monitor temperatures of fermentation vessels
A web available fermenter vessel controller. Uses PICs, i2c, Rs232 and python.
Program your appliances to operate automatically in conjunction with your weekly and daily schedule, manually turn them on/off from your PC or use the controller as a process ON/OFF controller to regulate some kind of physical variable to the desired value.
An interesting project using an accelerometer and capacitive touch ICs.
Motor driver (H-bridge)
An atomic-resolution microscope.
- STM (scanning tunnelling microscope)
- AFM (atomic force microscope)
A bluetooth JTAG ICE debugger for AVR's!!!
A 125Khz RFID Reader with a simple RS232 based ring network - to allow connection of multiple units to the same control computer.
Consider using "RS-232D", aka "EIA/TIA-561". It has all the same wires and voltages as RS-232, but specifies a RJ45 connector.
Also consider RS-485.
(What is the name of the standard for RS-485 on RJ14 ("4 wire RJ-11") or RJ45 ?)
See "Build A Smart Battery Charger Using A Single-Transistor Circuit" by Ejaz ur Rehman. But be sure to read the "Reader Comments" at the end. The suggestion to add a zener diode is a good idea.