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Onju Voice - AI assistant replacement to Google Nest Mini by @justLV
kv4p HT v1.7b
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Tad Boy Color
DIY Mechanical Macro Keypad ― Ocreeb
SIDKick pico 0.2 DAC (SID 6581/8580-replacement for C64/C128)
SlimeVR Hyperion BMI160 PCB
Sputnik Regenerative Receiver - SSB, CW, AM, FM
MicroDexed-Touch (depreciated)
Frog Boy Color
Low Cost Drone using ESP32
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Onju Voice - AI assistant replacement to Google Nest Mini by @justLV
kv4p HT v1.7b
SIDKick pico 0.2 (SID 6581/8580-replacement for C64/C128)
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This is a keyer that I designed to be used with a "sideswiper" or "cootie" Morse Code sending key. The circuit includes a PICAXE microcontroller, a twin-T tone oscillator, and an audio amplifier. When...
Morse Code Keyer, Rev: 7
2287
0
4
Charles Hampton
Charles Hampton
UNITED STATES OF AMERICA
2
7
The BearFoot FX Sea Blue EQ provides treble and bass boost and cut in emulation of a tube-like sound. It features controls for Volume, Treble, and Bass.
BearFoot - Sea Blue EQ
3722
0
3
Glory to Ukraine
Glory to Ukraine
UKRAINE
256
31
Using a 555 timer and PWM (Pulse-Width Modulation), by varying its duty-cycle, we can vary the speed of a DC motor by sending bursts of current to it. The 555 is configured as an astable square-wave o...
555 Timer 12VDC Motor Speed Controller
122
0
0
Astro's Electronics Lab
Astro's Electronics Lab
AUSTRALIA
16
39
Specter Shield addon for Specter DIY Bitcoin Hareware Wallet based on the STM32F469I-DISCO board. Adds Smart Card capability as well as QR Reader and Lithium Battery.Specter Shield v1.0.0 with minor c...
Specter Shield v1.0.0 (2024 Update)
252
0
2
Crypto Guide
Crypto Guide
CANADA
2
0
The idea for this project began in an open source hardware community I participate in, called Franzininho, in Brazil. We decided to have a Christmas project/challenge and the goal was to make a Christ...
3D Christmas Tree PCB using LEDs, CH32V003 MCU and CR2032 battery
703
0
4
André Araújo
André Araújo
BRAZIL
1
0
This circuit is an ultrasonic distance meter without using microcontroller.Distance range for this circuit is between 2cm up to 450cm ,However i get the best accuracy at distance less than 300cm. ...
Ultrasonic distance meter without microcontroller
1913
0
2
MOUSA Mousa - Simple Projects
MOUSA Mousa - Simple Projects
UNITED STATES OF AMERICA
159
6
An educational project for Audio, using an XY-P40W Bluetooth receiver as the audio source. The circuit filters the Class D amplified signal back to a classic audio waveform that is fed to RC filters (...
RPi Color Organ V2 Gerbers Sept 5
674
0
1
Jason
Jason
1
0
This is a PCB for a cheap and easy to build keyboard, designed to go with revision 1.9 of the ZX81+38 replica board.Note: Revision 1.9 of the ZX81+38 motherboard changed the layout of the keyboard con...
ZX81 Tactile Keyboard Rev.3
1543
0
8
hackup.net
hackup.net
GERMANY
110
0
This memory PCB allows you to create high capacity 4MB SIMM modules for older PCs, Macs, and other vintage computers.With a few alterations to the original schematics, this PCB allows you to configure...
30-PIN SIMM with EDO-2-FPM Mod
4018
0
19
BitsUndBolts BitsUndBolts
BitsUndBolts BitsUndBolts
UNITED ARAB EMIRATES
24
0
PCB badge in the shape of a tree that you can hang on your real tree.This time, I wanted to make something that looked very intricate with a lot of traces, but mainly for artistic purposes. I mean, th...
Christmas Tree PCB Badge
2549
0
11
Vaclav upir
Vaclav upir
CZECH REPUBLIC, THE
29
0
Components1. 3×22KΩ resistor 1/4W.2. 1×1.5KΩ resistor 1/4W.3. 2×3.3KΩ resistor 1/4W.4. 1×470Ω resistor 1/4W.5. 1×33Ω resistor 1/4W.6. 2×10Ω resistor 1/2W.7. 2×100Ω resistor 1W.8. 2×0.33Ω resistor 5W.9...
100W Mono Amplifier.
246
0
1
Mriganka Majumdar
Mriganka Majumdar
INDIA
14
0
Components1. 1×TDA1514A IC.2. 2×20KΩ resistor 1/4W.3. 1×470KΩ resistor 1/4W.4. 1×680Ω resistor 1/4W.5. 1×82Ω resistor 1/4W.6. 1×150Ω resistor 1/4W.7. 1×3.3Ω resistor 1/4W.8. 2×0.47uF(474) capacitor 50...
TDA1514A Mono Amplifier
225
0
0
Mriganka Majumdar
Mriganka Majumdar
INDIA
14
0
This is a DIY Three Phase Sequence Indicator / Rotation Tester Circuit, 3D printed file and parts list: https://mousa-simple-projects.blogspot.com/2024/07/diy-3-phase-motor-and-phase-sequence.htm...
3 phase Motor and Phase Sequence Indicator / Rotation Tester
436
1
2
MOUSA Mousa - Simple Projects
MOUSA Mousa - Simple Projects
UNITED STATES OF AMERICA
159
6
Most of us have seen the videos and articles about "hacking" digital calipers. 99 percent of them talk about reading the caliper value out of a port on the side of the device. I don't know about you, ...
DIY Digital Caliper
307
0
2
Dimitar
Dimitar
BULGARIA
2
0
Raspberry Pi Pico Debug Probe is a USB device that provides both a UART serial port and a standard Arm Serial Wire Debug (SWD) interface.The probe is designed for easy, solderless, plug-and-play debug...
Raspberry Pi Pico Debug Probe
758
0
0
BANJYO HARAN
BANJYO HARAN
JAPAN
5
132
This little PCB is creating the -5V power rail from the -12V rail.Some older ISA cards require the -5V as a reference voltage. Unfortunately, with the introduction of ATX Power Supplies, this voltage ...
-5V Mod for ATX Power Supplies
1085
0
7
BitsUndBolts BitsUndBolts
BitsUndBolts BitsUndBolts
UNITED ARAB EMIRATES
24
0
1
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