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Onju Voice - AI assistant replacement to Google Nest Mini by @justLV
SIDKick pico 0.2 (SID 6581/8580-replacement for C64/C128)
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DIY Mechanical Macro Keypad ― Ocreeb
SlimeVR Hyperion BMI160 PCB
Sputnik Regenerative Receiver - SSB, CW, AM, FM
MicroDexed-Touch (depreciated)
Filament Maker from PET Bottle
Frog Boy Color
Solar Powered WiFi Weather Station V4.0
PICOZX (MotherBoard) LCD&VGA Emulated Spectrum 128k
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 0.2 (SID 6581/8580-replacement for C64/C128)
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With this type of circuit you can control the speed of amotor from 0 to 100%, keeping the torque constant. In principlethe first astable in the NE556 circuit generates a signal withthe frequency of 40...
Control Pulse Width Modulation with NE556
1308
0
2
Cristian Pitigoi
Cristian Pitigoi
ROMANIA
43
14
Is a arduino based project open source that is using negasquirt firmware to control an engine with max 4 cylinders
Arduino controlled ecu speeduino open source
6774
1
8
Florentin ghicuta
Florentin ghicuta
ROMANIA
9
0
SAE PCB Key Rings in striking blue, available in four distinctive variants to suit your preferences. Two of these variants feature a built-in battery, a tactile button, 8 red LEDs, and 8 50-ohm resist...
SAE emblem - Key Ring
310
0
0
Andrei Grosu
Andrei Grosu
ROMANIA
0
6
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
1898
0
1
Cristian Pitigoi
Cristian Pitigoi
ROMANIA
43
14
Hello!This is a simple project made with Arduino Nano and some common modules. I used an infrared flame sensor, an MQ-2 smoke / gas sensor, an audible warning buzzer, a relay that could control a spri...
Fire Alarm System with Arduino Nano
1090
0
2
Cristian Pitigoi
Cristian Pitigoi
ROMANIA
43
14
I drew this circuit out of the need to reduce the number of connections to the Arduino platform, it uses 2 shift registers 74HC595 together with 8 current limiting resistors. It can be seen as an alte...
8x8 LED Matrix Circuit using 74HC595
2005
0
1
Cristian Pitigoi
Cristian Pitigoi
ROMANIA
43
14
Small size MT3608 DC-DC boost converter with fixed output.You have to use the properly resistor values for R1 and R2 resistors (they are marked with 1 and 2 on the PCB.You can calculate the output vol...
Fixed output MT3608
586
0
0
Marius M
Marius M
ROMANIA
12
20
A simple CW transceiver with one 2N2222 transistor, originally designed by PY2OHH. This is the 40m band version, with slight modifications and it has about 700mW output power. In the video I had some ...
Pititico CW Transceiver
986
0
0
DX Explorer
DX Explorer
ROMANIA
19
23
Sometimes, your ESP based project doesn't need a dedicated USB to TTL chip because you won't upload the firmware so often (especially on custom / embedded projects).In this case you can use a dedicate...
CH340C programmer with Auto-Reset
864
0
0
Marius M
Marius M
ROMANIA
12
20
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
980
0
1
Marius M
Marius M
ROMANIA
12
20
This is a Christmas decoration for this year when staying at home became the new normal.The pcb has two exposed areas for the windows and on the back of the left side of the window there is a tree sil...
Christmas gingerbread house
945
0
7
Boogami
Boogami
ROMANIA
1
6
I present a circuit with LED game for beginners, it is made with NE555 and 74hc164; components very easy to obtain. The circuit can be powered by 6-9V; the leds light up one by one from 1 to 8 and the...
LEDs Sequential Turn Light AUDI Style
1652
0
1
Cristian Pitigoi
Cristian Pitigoi
ROMANIA
43
14
I think most of us use a suorce of light when we can`t anything around us, so I present a small circuit and also it can be used for a funny project. I have modified the author`s schematic because I wa...
Fade LED When Dark
737
0
1
Cristian Pitigoi
Cristian Pitigoi
ROMANIA
43
14
[ LedClock- MICRO- 24x41 ] - Dots PCBDots PCB used in "LedClock- MICRO " project.!!! For some reason the online PCB tool will not generate Bottom Solder Mask Layer, so be sure to ask manufacturer to a...
[ LedClock- MICRO - 24x41 ] - Dots PCB
430
0
0
Marius M
Marius M
ROMANIA
12
20
Monitor for equal voltage at the terminals of two 12V batteries.Circuit presentation Most 24V back-up power systems, such as fireplaces, etc., use two 12V batteries. The charging system of the voltage...
Monitor for 12V batteries
748
0
0
Cristian Pitigoi
Cristian Pitigoi
ROMANIA
43
14
Hi designers!This is a simple circuit for monitoring the voltage of a battery, requires few components and easy to purchase. You can use linear mode or voltage level per led. The adjustment of this as...
Battery Voltage Monitor with LM3914
1308
3
3
Cristian Pitigoi
Cristian Pitigoi
ROMANIA
43
14
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