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Onju Voice - AI assistant replacement to Google Nest Mini by @justLV
DIY 1kW Open Source MPPT Solar Charge Controller
kv4p HT v1.7b
QuinLED-Dig-Uno
Bike Fingerprint - PCB
Solar Powered WiFi Weather Station V2.0
SummerCart64 - a fully open source N64 flashcart
Tad Boy Color
iSpndel_4.0
Arduino RC engine sound & light controller with inertia simulation for ESP32
400 Watts Stereo Audio Amplifier Board DIY 2SC5200+2SA1943
Frog Boy Color
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Onju Voice - AI assistant replacement to Google Nest Mini by @justLV
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ZIMBABWE
Build two of these modules for a dual supply!There is a mis-print on the silkscreen for the bridge rectifier. It is marked "KBU-406", it should say "KBU-604", which is a 6A/400V bridge. I don't believ...
0-15V 0.60mA-5A Adjustable Lab Power Supply
1393
3
3
Astro's Electronics Lab
Astro's Electronics Lab
AUSTRALIA
18
41
Introducing Flippy! The all-in-one modular 3D printed electromechanical seven-segment display. Through the use of 14 electromagnets, each digit is able to quickly and mechanically display both numbers...
Electromechanical Seven Segment Display
102
0
2
Engineer
Engineer
AUSTRALIA
1
0
Sick of building simple transistor circuits to find they fail. So I designed and built this test bed for small signal transistors. You work out the biasing resistor values then using a multimeter se...
Single BJT Amp Test Bed
605
0
0
Paul Perano
Paul Perano
AUSTRALIA
3
7
This preamplifier is based on Rod Elliott's project #2 on his ESP website, which is linked below. Using NE5532 (or any opamp of your choice, really) opamps, giving reasonably low-noise characteristics...
High-Quality Stereo Preamplifier
699
0
3
Astro's Electronics Lab
Astro's Electronics Lab
AUSTRALIA
18
41
I was looking for a simple audio oscillator I could just grab and use with minimal cables. Plug in a RCA - Croc clips cable and switch it on.I run the oscillator on a 9V battery and feed it through a ...
XR2206 Sine Wave Gen
988
0
0
Paul Perano
Paul Perano
AUSTRALIA
3
7
Why did you make it?After making a breakout for the MCP39F511 I wanted to try out its sibling ASIC the 521. The difference between these is essentially the serial interface. The 511 uses an ...
MCP39F521 Breakout
974
0
0
Tisham Dhar
Tisham Dhar
AUSTRALIA
3
2
Those annoying FETs are never what the datasheets tell me. So I calculate what I think the biasing should be. Grab a multimeter and pretest the trim pots. Plug in the FET/MOSFETs and test away. Tw...
Single JFET MOSFET Setup_2023-06-03(1)
490
0
0
Paul Perano
Paul Perano
AUSTRALIA
3
7
Two pcb deisgn that is stacked to create a regulator for the Game Boy Color that has a programmable pixel matrix. The board has the power circuit for a GBC with a modded screen and a microcontoller to...
GBC DC Pixel
2386
0
13
Natalie Cursio
Natalie Cursio
AUSTRALIA
57
0
A DCC accessory decoder for control of 8 dual solenoid devices.Can also be used for control of upto 16 devices that only need on/off control eg. lights.This is designed with all through hole component...
RT DCC Pulse 8 Turnout Decoder with capacitor discharge unit.
879
0
1
Ross Ross
Ross Ross
AUSTRALIA
5
0
This project is no longer supported it is here for those users who have already used them.If you are looking for a full featured DCC Stationary decoder with CDU that can be used with dual solenoid tur...
DCC-Accessory-Decoder
1772
0
2
Ross Ross
Ross Ross
AUSTRALIA
5
0
I use this in conjunction with my XR Oscillator board for the modulating signal. This AM modulation board can get me up to 1.8MHz using 5.6k 10 turn pot with about 75pF.Juggle the Level, Wav...
XR2206 AM Modulator
742
0
0
Paul Perano
Paul Perano
AUSTRALIA
3
7
Need a small utility amplifier to drive a speaker? This is the amp! Coined the "Champ", was originally the intellectual property of Darren B. Yates of Silicon Chip magazine (around 1995). Now, here it...
1 Watt "Champ" Utility Amplifier
899
0
1
Astro's Electronics Lab
Astro's Electronics Lab
AUSTRALIA
18
41
The Microcomp Version 2Here is your chance to build one of the most controversial Z80 computers ever.For all the information regarding this project including BOM and source code, see https://github.co...
The Talking Electronics Microcomp V2
1922
0
2
Ready Z80
Ready Z80
AUSTRALIA
7
3
Divided to fit on a regular-sized printer, this VESA mount fits the Siglent SDS8xx oscilloscopes.feet fit through the basetwo halves join together with locating pins and up to four M3 boltshandle snap...
VESA mount for Siglent SDS8xx oscilloscope
515
0
0
Adam Eberbach
Adam Eberbach
AUSTRALIA
3
7
A single PCB screw switch that is lightweight and robust, it uses tpu to ensure the connection doesn't shake loose and contains pads for a smd LED to act as a power indicatorInstructions on building t...
single PCB Robot Screw Switch
631
0
0
Ben Team Panic
Ben Team Panic
AUSTRALIA
1
0
A simple Inverting OpAmp board designed to allow you to play with an OpAmp and learn more about it. Plug in the OpAmp you want to test and you can easily adjust the gain or even offset and quickly che...
Single OpAmp Setup Non-Inverting_2023-09-06
464
0
0
Paul Perano
Paul Perano
AUSTRALIA
3
7
1
2
3
4
