Shared Projects

Wirelessly control neopixels in your room

Mod for a Wii nunchuck to make it integrate bluetooth serial

with protection for inputs, or not, do what you want!

Please be aware that the pin header for the eeprom selection is in the way, you have to remove it from the board.

This way you can use all 16 Channels in SigRok!

Genesis/Mega Drive joypad adapter for MSX

Wireless PS2 controller using an ATmega328p, nRF24l01+ radio, IMU, and batteries. This is the transmitter unit that will send the data from the PS2 controller to a receiver. Rest of the project here.

Apple II Proto Card

40-pin GPIO to LCD plus Adafruit SMPTE610 breakout - https://github.com/lkesteloot/alice/tree/master/alice4

I did this board for a project I was working on and thought it was a neat board so I decided to share it. I’m using a TI LP3985 voltage reg and 2x1uF caps. and the digikey number for the battery holder is BHX2-2032-PC-ND. It’s easy to modify using other sot23-5 v-regs.

RETEST NEEDED.

The Scout ESC is an open-source, dual brushed-motor speed controller that accepts both standard RC inputs or logic-level serial commands. The onboard processor is an ATmega 328 and can be programmed with the Arduino IDE using a standard FTDI cable or adapter. It operates at ultrasonic frequencies (no motor whine), at voltages up to 16 volts, and is rated at 10 amps continuous per channel, but the addition of a fan can increase the current capacity. The Scout has its own onboard fan controller that can drive any standard 12 volt, 2-pin PC case fan (the 40mm size works well). An onboard thermistor also allows the processor to monitor the board temperature.

The Scout was designed with the Open Panzer Tank Control Board (TCB) in mind and requires no special setup in that application other than to plug and play. It is the perfect size for controlling even the heaviest 1/16th scale RC tanks. For more details on connecting the Scout and TCB together see the Serial Motor Controller page of the TCB Wiki.

The Scout can also be used in many other applications including robotics. You can think of it as an open-source variant of the Dimension Engineering Sabertooth 2x12 or the Pololu Qik 2s12v10.

Resources

• For documentation, instructions, firmware, and a sample Arduino library, see the Scout repository at the Open Panzer GitHub site.
• For Eagle board files, schematics, and bill of materials, see the Open Panzer Downloads page.

Revision 10 - Uses the now-discontinued VNH2SP30 motor driver ICs (still available on eBay and AliExpress)
1/ 4/2017 - Version 10 Created
1/22/2017 - adjust silkscreen
2/ 5/2017 - adjust silkscreen
3/ 5/2017 - Adjust cream on motor chips for easier hand stenciling, adjust pads on screw terminals for easier hand-soldering.

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Arduino style board with PIC

STM8F Dev Board - https://hackaday.io/project/18286-misc-8-bit-uc-projects/log/54286-stm8-breakout-board-with-usb-serial

Quad channel differential to single-ended buffer board. Uses AD8421 op-amp.

USB Interruptor

Design files available at GitHub.

References:
Loosely based on design by Paul Stoffregen but using components that were more convenient for me.

Adapter for Arduino Pro mini and SMD or standard version of NRF24L01+ including prototyping area. For battery based systems.

BLF flashlight driver, 20 mm, DD+m

Features

• 20 mm direct drive + 350 mA regulator LED driver
• No OTC - Intended for e-switch, memory-decay or no-memory firmware.
• R5 to eliminate unintentional Vcc boosting during PWM.
• R3, R4 for stable drive of FET.
• Oversized heat plane for the 7135 with good thermal link to the ground ring.
• Generous 0603 pad sizes that will accept 0805 parts as well.
• Universal package size for MCU. Tiny13-85 fits.

Revision changes

• 01 Slight spring-side changes to adapt to a specific light.

Suggested parts list

• U1: Atmel Attiny25, SSU or SSN package
• U2: 7135 350 mA LED driver
• Q1: Vishay SiR800DP
• C1: 10 uF, X5R or better, 0805
• D1: Schottky diode, 200 mA 20 V or better, 0805 or SOD323
• R1: 22 / 330 kohm, 1%, 0603 (R1, R2 larger values for e-switch lights)
• R2: 4.7 / 100 kohm, 1%, 0603
• R3: 100 kohm, 5%, 0603
• R4: 47 ohm, 5%, 0603
• R5: 4.7 ohm, 5%, 0603

Tiny gameboy style interface board merging a pi0, ili9341 screen, battery charge/protect board, and 2 5way nav switches

Viking Motorsports Engine Control Unit