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Onju Voice - AI assistant replacement to Google Nest Mini by @justLV
kv4p HT v1.7b
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Desktop Neon Effect LED Signs
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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ZIMBABWE
A simple QRP CW transceiver with one transistor and an audio amplifier, based on the Pititico CW Transceiver designed by PY2OHH. This is the 40m band version and it has about 700mW output power. It's ...
Pititico 2, QRP CW Transceiver
2720
2
6
DX Explorer
DX Explorer
ROMANIA
30
38
Hello! This time I want to present an 7-segment four digit display controlled by two 74HC595.The LEDs are connected in the common cathode configuration; this module is useful in electronic a...
4 Digits 7 Segments CC Display Module with 74HC595
965
0
0
Cristian Pitigoi
Cristian Pitigoi
ROMANIA
47
14
Hello! I made this platform for me, you can use it with an ATMega8 or ATMega328 microcontroller, or any compatible microcontroller. I made a simpler version, giving up the programming circuit via USB ...
Programmable Board with ATMega
1699
0
2
Cristian Pitigoi
Cristian Pitigoi
ROMANIA
47
14
This a simple circuit, very easy to build and also efficient. There is enough space for mounting a heat sink, you may want to use a IRFZ44N instead..P.S. I am not the original author of this circuit I...
Adjust Pulse Width Modulation using NE555 and Mosfet
1435
2
3
Cristian Pitigoi
Cristian Pitigoi
ROMANIA
47
14
A simple QRP wattmeter and dummy load that allows you to measure the RF output power. Designed for QRP with 1W to 10W scales or 2W to 20W. In the blog article you will find more detailed info.Read the...
Two Scales QRP RF Wattmeter And Dummy Load
2130
2
2
DX Explorer
DX Explorer
ROMANIA
30
38
A minimalist QRP CW transmitter built in less than ten minutes. Only twelve components and an output power of 700mW @ 12V or 500mW @ 9V. A great project for beginners in building amateur radio equipme...
QRP Minimalist CW Transmitter
2982
2
3
DX Explorer
DX Explorer
ROMANIA
30
38
Did you ever wanted to quickly try a new sketch but you hate to search and manually put the LED's and resistor into the breadboard?I hate to do that. Especially when I just want to test something real...
Arduino UNO PB LEDs Module
494
0
0
Marius M
Marius M
ROMANIA
13
20
ATtiny85 / 13 programmer that can be mounted on Arduino UNO, with an led on PB3.Take this board, place in onto the top of an Arduino Uno MATCHING THE PINS, upload the Arduino as ISP sketch, then place...
ATtiny85 / 13 programmer -> adapter for Arduino UNO
508
0
0
Marius M
Marius M
ROMANIA
13
20
Supports 8 games in a single cartridge of size 2Kbytes or 4 games of 4Kbytes.Use only 2K or 4K roms in a single ROM.6 pin ic is actually a 3 pin DIP switch. For 4k ROM cartridge you can use 2 pin DIP ...
Radofin 1392 cartridge for 27128 ROM
267
0
1
FLORIAN-UDVARI ANTAL-ARPAD
FLORIAN-UDVARI ANTAL-ARPAD
ROMANIA
4
0
Basic 1x6 adapter for INMP441 sound module, so you can enable sound reactive on this WLED controller SR. Solder pad already connects L/R pin to GND. Please mind the orientation.
WLED controller SR - INMP441 adapter
662
0
1
Marius M
Marius M
ROMANIA
13
20
Basic PCB backplate board for a 0.56" display, that uses an ESP01 /ESP01S to get NTP Time and display it.Sketch code is a little bit messy because is still in progress, but it gets the job done. Just ...
ESP01 - TM1637 NTP CLOCK
891
0
1
Marius M
Marius M
ROMANIA
13
20
Controller Board used for Led Clock project, based on ESP32D / ESP32E microcontroller.You have to use an FTDI / UART adapter for the initial flash, or you can build yourself this fancy CH340C adapter:...
LedClock - Controller Board ESP32D/E
1296
0
2
Marius M
Marius M
ROMANIA
13
20
Variable stabilizer for low voltagesThe presented circuit allows to obtain stabilized voltages between the limits 1.2-9V.The 'series' transistor Q2 is controlled by the differential applicator consist...
Variable stabilizer for low voltages
1172
0
0
Cristian Pitigoi
Cristian Pitigoi
ROMANIA
47
14
Simple temperature regulatorCircuit descriptionThe temperature controller uses as a temperature transducer a thermistor connected diagonally to a Wheatstone bridge. Transistors Q1 and Q2 form a flip-f...
Simple Temperature Regulator
1039
0
0
Cristian Pitigoi
Cristian Pitigoi
ROMANIA
47
14
Step-up with UC3843 5A 12V to 30V
step-up with UC3843 5A
3383
0
0
Vlad Gheorghe
Vlad Gheorghe
ROMANIA
0
4
step-up with UC3843 5A
step-up with UC3843
2344
0
0
Vlad Gheorghe
Vlad Gheorghe
ROMANIA
0
4
1
2
3
4
5
6
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