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Onju Voice - AI assistant replacement to Google Nest Mini by @justLV
DIY 1kW Open Source MPPT Solar Charge Controller
kv4p HT v1.7b
QuinLED-Dig-Uno
Bike Fingerprint - PCB
Solar Powered WiFi Weather Station V2.0
iSpndel_4.0
400 Watts Stereo Audio Amplifier Board DIY 2SC5200+2SA1943
Arduino RC engine sound & light controller with inertia simulation for ESP32
4X40 Watts 4 Channel Audio Amplifier Board DIY TDA7388/CD7388 IC
SummerCart64 - a fully open source N64 flashcart
Frog Boy Color
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Onju Voice - AI assistant replacement to Google Nest Mini by @justLV
DIY 1kW Open Source MPPT Solar Charge Controller
kv4p HT v1.7b
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There are various wireless communication technologies used in building IoT applications and RF (Radio Frequency) is one of them. nRF24L01 is a single-chip radio transceiver module that opera...
NRF Data Transfer Via 2 Boards
1160
0
0
electronicguru0007
electronicguru0007
INDIA
3
0
When we are talking about major vital signs of a human body, there are four major parameters that we need to be aware of, they are body temperature, heart rate, breath rate,&n...
Iot patient monitoring system
508
0
0
electronicguru0007
electronicguru0007
INDIA
3
0
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
1453
0
1
Arshmah Arshmah Shahkar
Arshmah Arshmah Shahkar
UNITED STATES OF AMERICA
31
0
I2C IO Card for ESP-12E I2C Base CardThe I2C IO Card for ESP-12E I2C Base Card is another expander card for the ESP-12E I2C Base Card Project. This PCB is an address-selectable I2C module with two rel...
I2C IO card for ESP-12E I2c Base Card
804
0
1
Jean Redelinghuys MakerIoT2020
Jean Redelinghuys MakerIoT2020
THAILAND
52
164
VC-01 and VC-02 Offline Voice ModuleIn a recent article, I took a look at the new VC-01 and VC-02 Voice offline voice modules from AI-Thinker. I mentioned that I was working on a very simple prototype...
VC-01/VC-02 Offline-Voice-Module Carrier PCB
1510
5
0
Jean Redelinghuys MakerIoT2020
Jean Redelinghuys MakerIoT2020
THAILAND
52
164
STM32 Board:STM32 is a high-performance, development board with loads of features in a small form factor. It features a 32-bit ARM Cortex M3 processor running at 72MHz frequency with 64Kbytes of flash...
Getting Started with STM32- Arduino code Programming and PCB Design
1544
0
0
Arshmah Arshmah Shahkar
Arshmah Arshmah Shahkar
UNITED STATES OF AMERICA
31
0
In recent years I have developed numerous prototypes with Arduino. During these creations, something always bothered me. Using an Arduino board in a prototype took up a lot of space, was expensive, an...
Small Low Cost Circuit Deveelopment Board for Prototypes
1183
1
1
Silícios Lab silicioslab
Silícios Lab silicioslab
BRAZIL
42
0
2C port extenders or expanders are extremely useful devices, and I use quite a lot of them in my projects. My go-to device is definitely the PCF8574, mainly because it is sort of “breadboard friendly”...
A breadboard friendly MCP23017 breakout
1592
0
0
Jean Redelinghuys MakerIoT2020
Jean Redelinghuys MakerIoT2020
THAILAND
52
164
ESP32-S CardWhat is this?This project is the result of a lot of prototyping, using different MCUs and wanting to find a way to get a standard interface to all the devices.The idea is to eventually cre...
ESP32-S Card
1185
0
1
Jean Redelinghuys MakerIoT2020
Jean Redelinghuys MakerIoT2020
THAILAND
52
164
Introduction:A continuity testing device is used to check the breakage and shortage of wires in a circuit. Sometimes in a complex circuit design, we are unaware of the fault so we have to test the cir...
PCB Device to Test Continuity in Circuit and Polarity of Components
1016
0
0
Arshmah Arshmah Shahkar
Arshmah Arshmah Shahkar
UNITED STATES OF AMERICA
31
0
Introduction to MAX30207:MAX30207 IC is a low-power and high-accuracy digital temperature sensor. Its accuracy to measure temperature is ±0.1°C. It has a low thermal mass (the ability to store and rel...
High Accuracy and Low Power Digital Temperature Sensor PCB MAX30207
1030
0
0
Arshmah Arshmah Shahkar
Arshmah Arshmah Shahkar
UNITED STATES OF AMERICA
31
0
Overview:Take an example of a microwave oven, the microcontroller processes your input that you enter through keypad, displays information as an output, handle the time for cooking, and the bell rings...
PICAXE40X2 Efficient MCU Ideal in Hobbyist Project PCB
636
0
0
Arshmah Arshmah Shahkar
Arshmah Arshmah Shahkar
UNITED STATES OF AMERICA
31
0
This is the SOLAR BANK which is essentially a power bank that has a solar panel inbuilt.This solar panel is capable of providing 5V 250mA which can be used to charge a Li-ion cell. we can then use thi...
SOLAR Bank!
847
0
0
Arnov Arnov sharma
Arnov Arnov sharma
INDIA
49
50
IntroductionI had been exploring the Tuya IoT platform for the past few months and they never fail to amaze me with their ever-growing list of features, it had never been so easy for developers to gra...
Tuya Link SDK IoT Smart Environment Sensing And Humidifier
1613
0
0
vilaksh01
vilaksh01
INDIA
2
0
CAN-Relay Module with Atmega8a/168/328Note: 25/10/2023I have made an updated version of this project, due to issues with component availability. That resulted in a change of the Gerber files and BOM. ...
CAN-Bus Relay Module with ATMEGA8a
1869
0
3
Jean Redelinghuys MakerIoT2020
Jean Redelinghuys MakerIoT2020
THAILAND
52
164
INPUT And Monitor Shield for LoRa Base ModuleIntroductionThis is a straightforward project compared to my usual PCB projects. It is one of a series of designs towards completing my LoRa monitoring sys...
IO-Shield for LoRa-Base
1264
0
0
Jean Redelinghuys MakerIoT2020
Jean Redelinghuys MakerIoT2020
THAILAND
52
164
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