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Onju Voice - AI assistant replacement to Google Nest Mini by @justLV
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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
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ZIMBABWE
Time Master is a critical part of a PTP enabled network. It provides accurate time via GNSS while maintaining accuracy in case of GNSS failure via a high stability (and holdover) oscillator such as an...
OCP Time Card
2492
0
9
OCP-TAP
OCP-TAP
UNITED STATES OF AMERICA
4
0
A clock development board with ATtiny85 microcontroller, DS1307 real time clock and 2032 battery holder.
ATtiny85 TinyClock DS1307 DIP
2792
0
0
Oleg Oleg
Oleg Oleg
RUSSIAN FEDERATION, THE
586
40
Made to add as many features into the Heltec V3 as possible without the mess of wiring for Meshtastic. Features:Pinout for Heltec Lora ESP32 V3GPS Slot for GT-u6 with NPN transistor built-in to a...
Heltec ESP32 V3 Ultimate Shield for Meshtastic
693
0
5
Ronald Garcia-Mendoza
Ronald Garcia-Mendoza
UNITED STATES OF AMERICA
0
0
Easy to use 555 oscillator with potentiometers to adjust duty cycle and frequency.The 5 pin header can plug into a breadboard and an external capacitor can be added on the breadboard to modify the fre...
555 Adjustable Duty Cycle and Frequency
558
5
2
Gadget Reboot
Gadget Reboot
CANADA
73
19
Hedy MCU is a IOT based microcontroller board which can be programmed to perform various tasks and applications. Apart from that it has a programmable WS2812B led which can reflect more than 16M color...
ESP8266 based Hedy MCU Dev-Board.
395
0
0
Shreyas Shah
Shreyas Shah
INDIA
0
0
CNC Maquina de control numerico computarizado con microcontrolador ESP32 , comparto el video: https://youtu.be/d1MppBC-Puk?si=Wfq46EQOi2WQNB0W
CNC - ESP32
2531
1
13
Profe Garcia El_Profe_Garcia
Profe Garcia El_Profe_Garcia
COLOMBIA
229
0
Supply 12.6V can drive tube amp like this. Here is headphone amp and 220mW output.
12au7 mini watter amp : model RK212
745
0
0
shuuichi takikawa
shuuichi takikawa
JAPAN
51
1
[Warning - this circuit is still being verified to be fully functional. Review the schematic attached for more details]. This board is mostly for educational purposes but does have a few useful featur...
Miscellaneous BJT Circuits
451
0
1
Zach Burmeister
Zach Burmeister
UNITED STATES OF AMERICA
0
0
Hi, I would like to present another project. A board for ATtiny85. This is a board to be able to start with a microcontroller, the usb connector allows you to use VUSB after uploading a proper bootloa...
ATtiny85 Dev Board
1514
0
1
Michal Misiek_86
Michal Misiek_86
POLAND
4
1
This module is an MCU based interface board designed to interface to 2004 or 1602 LCD Display. It can also be used as an I2C development board.The complete documentation can be found in https://www.ha...
I2C / LCD 8Bit Interface Module
1615
0
0
Isagani
Isagani
SINGAPORE
1
4
This board can be assembled with machine pin sockets to allow swapping NPN transistors as well as configuration resistors, bypass capacitors etc.The main use is to experiment with common emitter ampli...
NPN Transistor Breakout Board
218
0
1
Gadget Reboot
Gadget Reboot
CANADA
73
19
Hey there! I've just designed this super handy double-sided breakout project board for the Arduino Pro Micro. It's got footprints for screw terminals on each side of the pins, making it super easy to ...
Pro Micro Development Breakout Board
191
0
0
HKT Toggle Box
HKT Toggle Box
UNITED STATES OF AMERICA
0
0
This DTMF decoder uses the MT88L70, powered by 3.3v and interfacing with 3.3v GPIO to decode the touch tone keys.It has an RJ phone jack and 600:600 transformer to connect to a phone line to pick up a...
DTMF Decoder 3.3v MT88L70
537
0
0
Gadget Reboot
Gadget Reboot
CANADA
73
19
Simple but fancy ESP32-C3 Development Board.Also features a WS2812B 2020 RGB LED linked to IO8 pin.Breadboard compatible.Made with 0805 (or higher) components for easier hand soldering.I placed the "...
ESP32-C3 DevBoard
911
0
1
Marius M
Marius M
ROMANIA
13
20
This breakout board is made for all of your pin-hungry Arduino / Linux projects! I decided to make it because I wanted to start learning about PCB design and wanted to have GPIO pins on my Linux lapto...
PCF8574 x8 GPIO Expander with VGA/I2C Port
835
0
0
Mer08_
Mer08_
SPAIN
0
0
This pcb can be connected to a land line and when DTMF tone pairs are detected, they are decoded by the MT8870.4 bit data can be decoded by Arduino or another processor to determine what phone key was...
DTMF Decoder Phone Interface
1393
0
0
Gadget Reboot
Gadget Reboot
CANADA
73
19
1
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