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Onju Voice - AI assistant replacement to Google Nest Mini by @justLV
SIDKick pico (SID 6581/8580-replacement for C64/C128)
Desktop Neon Effect LED Signs
DIY Mechanical Macro Keypad ― Ocreeb
SlimeVR Hyperion BMI160 PCB
Sputnik Regenerative Receiver - SSB, CW, AM, FM
MicroDexed-Touch (depreciated)
Filament Maker from PET Bottle
Solar Powered WiFi Weather Station V4.0
PICOZX (MotherBoard) LCD&VGA Emulated Spectrum 128k
Frog Boy Color
espthings.io - ET-P1101 ESPHome Panasonic Climate Interface
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Onju Voice - AI assistant replacement to Google Nest Mini by @justLV
SIDKick pico (SID 6581/8580-replacement for C64/C128)
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ZIMBABWE
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
908
0
1
Marius M
Marius M
ROMANIA
11
20
[ LedClock- MICRO- 24x41 ] - 7 Segment PCB7 Segment PCB used in "LedClock- MICRO " project.!!! For some reason the online PCB preview tool will not generate Bottom Solder Mask Layer, so be sure to ask...
[ LedClock- MICRO - 24x41 ] - 7 Segment PCB
884
0
1
Marius M
Marius M
ROMANIA
11
20
A simple NE555P IC audible RF field strength meter. It can detect a 1W VHF / UHF handheld from about 2 or 5 meters away. A useful tool to have for testing radio gear. In the blog article you will find...
Audible RF Field Strength Meter
1080
0
1
DX Explorer
DX Explorer
ROMANIA
17
23
An easy way of connecting an ''Arduino Nano'' to the ''Stepper Online TB6600 3 Axis Stepper Driver'' Board 😊
GRBL Shield
439
0
1
Nechifor Marian
Nechifor Marian
ROMANIA
1
4
7 SEGMENT CLOCK ON OLED DISPLAYS - PART 1This project was developed together with a friend and is very well presented here:https://nicuflorica.blogspot.com/2023/05/alt-ceas-ntp-cu-cifre-din-7-segmente...
7-segment NTP clock on four OLED display - Part. 1
1072
0
1
Georgel zvonacfirst
Georgel zvonacfirst
ROMANIA
3
0
7 SEGMENT CLOCK ON OLED DISPLAYS - PART 3This project was developed together with a friend and is very well presented here:https://nicuflorica.blogspot.com/2023/05/alt-ceas-ntp-cu-cifre-din-7-segmente...
7-segment NTP clock on four OLED display - Part. 3
505
0
1
Georgel zvonacfirst
Georgel zvonacfirst
ROMANIA
3
0
Simple 3x3 Macro Keypad, I made some time ago using CherryMX switches, some SK6812 Mini-e RGB LEDs and a small 0.91" OLED display.You can replace switch 1 (S1) with an rotary encoder if you want.Since...
3x3 Macro Keypad
920
0
1
Marius M
Marius M
ROMANIA
11
20
I needed an CH340C programmer with some extra pins exposed (RST / CST) and because I didn't find one, I decided to build one. :)I wanted to keep it as small as possible, I chose to use 0603 resistors ...
CH340C programmer [extra pins exposed]
441
0
1
Marius M
Marius M
ROMANIA
11
20
Circuit presentationThe electronic circuit presented indicates the value of the voltage with eight LEDs, namely the following voltage levels: 10; 10.5; 11; 12; 13; 14; 14.5 and 15V. Because the values...
Car Battery Monitor
958
0
1
Cristian Pitigoi
Cristian Pitigoi
ROMANIA
42
14
Circuit working principleThe application schemes of the already integrated classics LM317 and LM337 are used, but with the modified reference to increase the voltage from 0V. The power supply is made ...
Differential voltage source
1324
0
1
Cristian Pitigoi
Cristian Pitigoi
ROMANIA
42
14
SMALL AMPLIFIER TDA7377 of 15W + 15W + 30WI have developed an amplifier with the following characteristics: 15W + 15W + 30W in 4 ohms and TDA7377 as main component. This has 4 outputs t...
2.1 Amplifier Board with TDA7377
819
3
1
Georgel zvonacfirst
Georgel zvonacfirst
ROMANIA
3
0
Circuit operationThis circuit can be used for detecting the signals emitted by our cell phones when we are called or call another user.When calling a GSM mobile, identification signals (Signal Control...
Phone Calling Dectector
914
0
1
Cristian Pitigoi
Cristian Pitigoi
ROMANIA
42
14
Vu-meter with multicolored LED dot bar The presented vu-meter is an electronic instrument used to measure the volume of electrical audio frequency signals displayed on a scale of 10 LEDs in ascending ...
Vu-meter with multicolored LED dot bar
1858
0
1
Cristian Pitigoi
Cristian Pitigoi
ROMANIA
42
14
The integrated fixed / adjustable regulators (ADJ) operating in switching mode are of the "step-down" (LM2575 / LM2576) and "step-up" (LM2577) type, respectively.This series of regulators is also nota...
Switching voltage regulator
1224
0
1
Cristian Pitigoi
Cristian Pitigoi
ROMANIA
42
14
2x30W Stereo Amplifier with TDA1521Technical data:2x12V power supplyMaximum RMS power 2x15W / 4ohm or 2x10W / 8ohmMaximum musical power 2x30W / 4ohmSensitivity 300mV / 20Kohm7Hz ... 60kHz (-3dB) frequ...
TDA1521 Audio Amplifier
1878
2
1
Cristian Pitigoi
Cristian Pitigoi
ROMANIA
42
14
This well-known integrated circuit LM2575, is a voltage regulator In switching and is delivered in 4 variants:- three variants with fixed output voltage (LM2575-5, 12 or 15);- a variant with adjustabl...
LM2575 SMPS
1412
0
1
Cristian Pitigoi
Cristian Pitigoi
ROMANIA
42
14
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