Feather Prototype for AP3602A 5v boost breakout with Molex con. for Honeywell HPM. Developed for the KnighLab SensorGrid project. This is very much a work in progress and will be going through updates as we iterate on the sensor node design.

Predicting Tracker

jst sensor

16x16mm 4 layer 4 in 1 BLDC controller

I haven’t tested this. This is just my upload from the DodgyPLA project:

https://github.com/desaster/c64-dodgypla

Description:

Commodore 64 PLA replacement

Based on the work by skoe:

https://bitbucket.org/skoe/pla

http://skoe.de/docs/c64-dissected/pla/c64_pla_dissected_a4ds.pdf

This design uses the Xilinx XC9536XL, which has 5V tolerant inputs essential for operation with the Commodore 64.

As opposed to skoe’s design, the required CASRAM delay is implemented in Verilog instead of using additional components.

This project includes:

A Xilinx ISE project written in Verilog for Xilinx XC9536XL A KiCad project including a board designed for home etching

NOTE A mistake has been found, as the four “pre-count” legs on the HC163 are not tied to GND as they should. So if you made this board, you need to put a small wire between these and GND.

Untested! Based on the schematics found here: http://www.webalice.it/cicciopetito/

THIS IS AN UNTESTED PROTOTYPE, BUILD AT YOUR OWN RISK!

Near final prototype of an ATMEGA328P based Saturn controller demuxer. This update added traces to pins 3 and 9 of the DB15 connector so those pins can be mapped in case your supergun makes use of them.

This board takes gamepad inputs and converts them to discrete outputs for connecting to arcade PCBs, Superguns and NEO GEO AES consoles. The pinout for the DB15 pinout matches that of Undamnded’s USB DB-15 adapters.

BOM:

U1: ATMEGA328P TQFP32

R1,R`2: 100ohm 0603

R3,R4: 1kohm 0603

Y1: CSTNE16M0V530000R0 - 16mhz ceramic resonator with internal capacitors

J1: Panel mount Female DB15

J2: Sega Saturn Controller Port.

Software for this board is on Github Here.

THIS IS AN UNTESTED PROTOTYPE, BUILD AT YOUR OWN RISK!

27C160/400/800 Programming Adapter for XGeco TL866

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License

Want to Support my work? Become a Patron or feel free to Donate

29F400/800 Programming Adapter for XGeco TL866

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License

Want to Support my work? Become a Patron or feel free to Donate

Useful voltage regulator that outputs both 5v and 3.3v. C0 is 0.1uf, C1 and C2 are 10uf. R1 is 240 Ohms. U1 is LM1117-5.0 or equivalent 5v converter. U2 is LM1117-3.3 or equivalent 3.3v converter.

Webot Revision 15 with 7805 voltage regulator on board to allow higher motor voltages for faster walking. L293D h-bridge driven with input voltage while the rest of the circuit gets 5V.

THIS IS AN UNTESTED PROTOTYPE, BUILD AT YOUR OWN RISK!

Near final prototype of an ATMEGA328P based Saturn controller demuxer. This takes gamepad inputs and converts them to discrete outputs for connecting to arcade PCBs, Superguns and NEO GEO AES consoles. The pinout for the DB15 pinout matches that of Undamnded’s USB DB-15 adapters.

BOM:

U1: ATMEGA328P TQFP32

R1,R`2: 100ohm 0603

R3,R4: 1kohm 0603

Y1: CSTNE16M0V530000R0 - 16mhz ceramic resonator with internal capacitors

J1: Panel mount Female DB15

J2: Sega Saturn Controller Port.

Software for this board is on Github Here.

THIS IS AN UNTESTED PROTOTYPE, BUILD AT YOUR OWN RISK!

This board adds two additional MCP23S17 I/O expanders and a battery-backed real-time clock to the SPI bus that z80ctrl exports on the user pins of the RC2014 backplane. This provides 4 additional 8-bit GPIO ports that can be made available from z80ctrl to the Z80.

Visit the project pages on GitHub and Hackaday.io for more information.

This board provides a DB-9 game controller interface compatible with Atari Joysticks, Sega Genesis controllers, and ColecoVision controllers. It uses the same I/O ports as the ColecoVision so it is compatible with unmodified ColecoVision games.

Visit the project pages on GitHub and Hackaday.io for more information.

Amiga 4000 Tower Ports Module

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License

Want to Support my work? Become a Patron or feel free to Donate

Amiga 4000 Tower Disk Module

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License

Want to Support my work? Become a Patron or feel free to Donate

Turns 6 1S Tiny whoop batteries into a 6S for the purpose of parallel charging.

Bill of Materials:

1X: 6S balance lead JST-XH Plug with leads

6X: JST PH 2.0mm Pitch 2Pin Straight PCB Socket Male Connector Shrouded Header

`1X: XT60 connector with leads.

This is a SN76489-based sound card for the RC2014. It is a very simple chip, only capable of producing square waves and a noise channel, without any envelope control or filters. This chip was used in the TI-99/4A, ColecoVision, Sega SG-1000, Sega Master System, Sega Genesis, IBM PCjr, Tandy 1000, BBC Micro, as well as many arcade games.

Visit the project pages on GitHub and Hackaday.io for more information.

This is a TMS9918A-based video card for the RC2014. It allows the RC2014 to produce NTSC composite graphics using a classic chip of the 1980s. The TMS9918A was used in the TI-99/4A, MSX, ColecoVision, and Sega SG-1000.

Visit the project pages on GitHub and Hackaday.io for more information.