Shared Projects

Shield for 4.08mm phoenix connectors for button inputs and lights

A small blinking thing with an ATTiny10. Naive ‘blink’ program averages 6mA consumption.

Dynamixel XL430 MUX with one XL320 connector to allow us to jumper to an OpenCM9.04

Simple ESP-01 Breakout PCB, as adapter for (i.e.) Breadboards

Stepstick-Breakout for the MKS sBase for upgrading the drivers

• VMOT: XT30 plug which can be chained to more boards
• Input Connectors: [E]nable, [S]tep, [D]ir, [Ground]
• Output Connectors: Same order as on the StepSticks
• VIO: Supply with you board’s IO Voltage (5V on RAMPS, 3.3V on MKS sBase, …)
• Capacitors between Motors: Just install what you think is right. 10µF 35V works for me. + and GND are marked.
• Inside each StepStick there are solder jumpers for MS1..3. Top row is VIO, middle row is MSx and bottom is GND.
• The unmarked pins between input (ESDG) and the StepStick are also the MS1..3 pins if you want to have a SPI bus for the TMC2130 drivers or use UART for TMC2208

I designed this to use a J-LINK debugger with a Beaglebone. However, it should work for other 20 pin JTAG debuggers.

DISCLAIMER: I have not yet tested this and there could be a mistake I didn’t see. Use at your own risk.

Parts:

• 20 PIN ARM JTAG Male Header: ‎SAMTEC HTST-110-01-L-DV
• cTI 20 PIN Female Socket: SAMTEC RSM-110-02-L-D

5.8 GHz antenna? https://www.youtube.com/watch?v=rFKMC3BP_gs

Magnetic Compass (Magnetometer) camera switch. See www.rv-project.com/projects/furrioncamera2.php for details.

Brake controlled Camera Switch. See www.rv-project.com/projects/furrioncamera2.php for details.

Adapter board for 433Mhz Wireless Relay camera switch. See www.RV-Project.Com/projects/furrioncamera2.php for details.

Breakout AB1815 RTC w/ SPI. Tens of nA power. Simplified interface. KiCad files shared at Github.

NOTE: This board has been replaced by DRSSTC Driver V2.

Driver board for a Dual-Resonance Solid-State Musical Tesla Coil. This design features a zero-current-switching phase-lead circuit, an over-current detection/lockout circuit, an under-voltage lockout circuit, and a PLL-based adjustable dead-time delay. Requires regulated 15VDC power supply. It’s designed to be used with the Dual-Resonance Solid-State Tesla Coil Full Bridge board.

Drive two of these with the FPGA-Based Dual-Resonance Solid-State Stereo Music Tesla Coil Interrupter.

The debut performance for this board was during Shock-or-Treat Halloween 2018, and can be viewed at: http://mediadrop.dewtronics.com/media/media/shock-or-treat-halloween-2018.

Note: This board is still in the prototyping/testing phase and hasn’t been fully qualified yet. Build at your own risk.

Errata: Oops, just realized I goofed the via hole size. They were supposed to be 25mil, but are 35mil instead. The vias are 46mil diameter, so it’s still within fabrication specs, but just barely. I hate cutting things that close to minimum tolerance specs.

Also, resistor R5 should be a 330-Ohm instead of 470-Ohm to allow the Blue LED to be a little brighter, as Blue LEDs require more current. And, the 1K-Ohm R9 should be at least a ½-Watt part and preferably 1-Watt, or you will risk burning it up from the high-voltage peaks of the current-transformer in the zero-current-switching circuit, which occurred during the first static-load test performed on this board. Unfortunately, finding such a large wattage part in a 0805 footprint will be difficult, if not impossible, meaning a large through-hole part will have to be graft in.