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Onju Voice - AI assistant replacement to Google Nest Mini by @justLV
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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)
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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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The H bridge inverter is used to convert DC voltages to AC voltages. An h bridge is common in generating pure sine waveforms from DC square waveforms.H-bridge consists of 4 switches which could be tra...
H-Bridge Inverter PCB Design Board
1408
0
1
Arshmah Arshmah Shahkar
Arshmah Arshmah Shahkar
UNITED STATES OF AMERICA
31
0
The use of mobile phones is increasing day by day due to the involvement of digital and online things in our lives. During the period of the pandemic, when offices and educational institutions were cl...
Power Bank Circuit Design Board PCB
1325
0
0
Arshmah Arshmah Shahkar
Arshmah Arshmah Shahkar
UNITED STATES OF AMERICA
31
0
This is my attempt at a LiPo-based battery pack for "Classic" HP Calculators, specifically HP-35, HP-45, and HP-55. The original NiCd packs are all dead by now, and rebuilding them is difficult -...
HP Classic Calculator LiPo Battery Pack V2
2073
0
0
Tom LeMense
Tom LeMense
UNITED STATES OF AMERICA
1
3
Several members of group have had the horrible experience of accidentally connecting up a battery backwards and destroying an expensive radio. This little circuit was designed to use MOSFETs to prev...
13.8VDC Polarity Protector
1151
0
3
Gordon L Gibby
Gordon L Gibby
UNITED STATES OF AMERICA
5
1
To charge small portable devices like a collar cell, headphones, mobile phones we cannot carry a heavy or large battery charger to charge it, we need a small battery charger module of compact size wit...
Micro USB Lithium-Ion Battery Charger PCB Module
1365
0
0
Arshmah Arshmah Shahkar
Arshmah Arshmah Shahkar
UNITED STATES OF AMERICA
31
0
This circuit is a short running time online UPS that used high voltage capacitors to stores energy, instead of battery !It can be used in different cases :1-Connecting two (or more) gasoline generator...
Online UPS with Capacitors
2049
0
2
MOUSA Mousa - Simple Projects
MOUSA Mousa - Simple Projects
UNITED STATES OF AMERICA
159
6
This is a DIY Transformerless inverter, it can convert high DC voltage to AC Voltage with Pure sine wave.To get 220V AC we need at least 311V DC in the inputand to get 110V AC we need at least 155V DC...
DIY Transformerless inverter
5510
1
9
MOUSA Mousa - Simple Projects
MOUSA Mousa - Simple Projects
UNITED STATES OF AMERICA
159
6
The solar panels can be charged using Maximum Power Point Tracking(MPPT). This power tracking charges the panels that are run by the sunlight. Sometimes when we do not have the facility to provide the...
Solar Power Regulator Design on PCB
843
0
0
Arshmah Arshmah Shahkar
Arshmah Arshmah Shahkar
UNITED STATES OF AMERICA
31
0
In this video we take a circuit from the March 2021 ARRL Magazine (Ham radio) designed by John Burnley. It is a polarity tester for your wall wart power supplies. Are center negative or center positiv...
Polarity Tester
1136
1
2
learn electronics
learn electronics
UNITED STATES OF AMERICA
93
0
Video with all the details :) https://youtu.be/9MUQu05Qd_Q I would like to mention that the grounding through the resistor and led adds a voltage drop. With my testing so far, this has not affected Ga...
Gameboy cart power supply for when you want to keep your save files while replacing the battery!
1308
0
4
Solder king
Solder king
UNITED STATES OF AMERICA
8
0
The Isolated Half Bridge Gate Driver is a high performance based on Texas Instrument's UCC21520A isolated dual-channel gate drivers with 4-A source and 6-Asink peak current. It is designed to drive Si...
High Speed/High Power/High Voltage Silicon Carbide/Mosfet/IGBT Half Bridge Isolated Gate Driver
1431
1
3
GreenTech Electronics
GreenTech Electronics
UNITED STATES OF AMERICA
7
0
Power banks often shut down when connected to low current devices as they designed to provide a power while charging a smartphone and to cut it off when the current drops below the threshold. Here’s a...
Keep power bank alive
1449
0
0
Alex Sidorenko
Alex Sidorenko
UNITED STATES OF AMERICA
0
0
Our project is a solar charger using a printed circuit board (PCB) coil for isolated, expandable charging. The PCB serves as a wireless charger, utilizing a 74hc14 chip as a tunable oscillator running...
Solar charger using PCB-coil for isolated, expandable charging
610
1
4
Michael Turner
Michael Turner
UNITED STATES OF AMERICA
1
0
Primarily I designed as a compact and simple power splitter that will be used inside of modular hexagonal lights. This has been designed to be general purpose to allow for use in many different projec...
5-way splitter/power distribution
23
0
0
Kain Joyner
Kain Joyner
UNITED STATES OF AMERICA
0
1
This is not going to be assembled anymore the PCBS are going to be requotes for the fastest lead-time possible to the normal shipping address. If there are any problems please have the rep contact me ...
Project Outputs for HV_DVM
224
0
0
Engineer
Engineer
UNITED STATES OF AMERICA
0
0
Breadboard friendly Spilt Rail PSU for OpAmps using the ICL7660 IC, 3 caps, and some male header pins. Plugs right in the breadboard and gives you a positive, negative, and ground rail.
learnelectronics-bb-opamp-psu-v1
1033
0
2
learn electronics
learn electronics
UNITED STATES OF AMERICA
93
0
1
2
3
