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Mini Universal Card v1.5
Isaksson Aug 26,2025
That sounds like a very interesting and versatile development board! The Mini Universal board with Arduino Nano as the brain appears to be designed for industrial and IoT applications with all these features.Let me summarize what I understand the board includes:Communication:LoRa HC-12 module for long-range wireless communicationBluetooth for short-range communication433MHz wireless transmitterInputs and Outputs:Relay outputs for 12V industrial control12V industrial inputsDigital inputs and outp...
Arduino LED IoT
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Air Quality Monitor
Neyra Aug 24,2025
The Air Quality Monitor is a compact, ESP32-C3–based device designed to track and display key indoor environmental metrics in real time. At its core, it integrates the Sensirion SEN54 for particulate matter (PM1.0, PM2.5, PM4.0, PM10) and VOC index, alongside the SCD40 for precise CO?, temperature, and humidity readings. A crisp 3.71" e-paper screen provides always-on, low-power visualization of air quality trends, making the data both easy to interpret and unobtrusive in any room.Beyond the har...
ESP32 Sensor I2C
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BrewOsmosis
homebrewers Aug 20,2025
For the BrewOsmosis system PCB, you'll need, in addition to the board, 10k resistors (between 3 and 7 depending on your configuration), three-pin 2EDG3.81 STRAIGHT connectors (between 7 and 9 depending on your configuration), 40 2mm pitch pins, and an additional ADS1115 module for the future.https://diyhomebrewers.com/2025/09/brewosmosis-domotizacion-de-un-sistema-de-osmosis.html
8th Design Contest-AIoT Project
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InterGasGW (Gateway)
Bontenbal Aug 15,2025
InterGasGatewayArduino (esp8266) Hardware/Software to monitor a Intergas boiler over rs232 interface (x5) of the intergas boiler to Domotica Software with the use of MQTT.What to expectThis project consists of:Hardware -> Cable diagram of between the IntergasGateway and the boilerHardware -> IntergasGateway Schemetic based on KiKadHardware -> IntergasGateway PCB based on KiKadSoftware -> IntergasGateway sketch to be placed on arduino eps8266HardwareA few requirements, set by myself, ...
ESP8266 Arduino DIY
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TubeLight - part #3
Frederiksen Aug 13,2025
this is one of the discs that makes up the rail for the TubeLight
ESP32 IOT WiFi
136
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TubeLight - part #1
Frederiksen Aug 13,2025
TubeLight:This is a project that is made up of 3 different PCBs in total. There is the base and the 2 other PCBs that makes up the rail where the LED-strip is fixed. I have a prototypes with 1M and 2M long rails.
ESP32 IOT WiFi
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ESP32 based Lora Ebyte E22-400T22S Reciever with Relays
Khan Aug 09,2025
The receiver module is a critical part of the wireless surveillance camera control system, designed for long-range, reliable operation using the LoRa Ebyte E22-400T22S at 433 MHz. Just like the transmitter, it leverages LoRa’s robust communication capabilities to ensure seamless data reception even in challenging outdoor environments.Upon receiving control commands from the transmitter, the receiver processes the data via an ESP32-S3 microcontroller and executes precise motor movements for the s...
DIY Arduino IOT
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ESP32 based Lora Ebyte E22-400T22S transmitter
Khan Aug 09,2025
This project focuses on replacing the traditional wired control system for surveillance camera tilt motion with a reliable long-range wireless solution. The motivation stemmed from challenges in wired setups, including distance limitations, frequent weather-related failures, and costly repairs.To achieve this, I designed a custom wireless remote control system using the LoRa-based Ebyte E22-400T22S module, operating at 433 MHz. This module offers an open-area communication range of up to 5 km, e...
ESP32 Relay IOT
760
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CH340K USB-C Programmer with Auto-Reset (for ESP Chips)
M Aug 05,2025
For many embedded or custom ESP-based projects (like this one), a dedicated USB to TTL chip on the main PCB isn't always necessary—especially if firmware uploads are rare.In these cases, an external USB-to-serial programmer comes in handy.However, uploading firmware to ESP chips isn't always straightforward.As you may know, ESP chips require specific pin states (typically toggling EN and IO0) to enter boot mode. Without automation, you're left using awkward workarounds like holding down buttons,...
ESP32 ESP8266 IOT
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Arduino Location Tracker using SIM800L GSM Module and NEO-6M GPS Module
Tom Aug 04,2025
Project OverviewThis in-depth tutorial illustrates how to develop an affordable real-time GPS tracking system with Arduino UNO R3, integrating the NEO-6M GPS module for satellite location and SIM800L GSM module for cellular data transfer. The project provides a full DIY substitute to commercial GPS trackers without monthly fees, yet with professional-level t...
Arduino DIY IoT
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Popular Project
DIY Meshtastic Using ESP32 : Build Your Own Private Off-Grid Network
Project OverviewThis project delivers a complete, custom-designed PCB solution for building Meshtastic mesh network nodes. Unlike traditional communication methods that rely on cellular towers or Wi-F...
? How to Make a DIY Spot Welding Machine at Home for 18650 Batteries | Full Circuit & Working
If you’re working on battery pack projects using 18650 lithium-ion cells, then you know how important a spot welder is. Buying a professional spot welding machine can be expensive, but today, I’ll sho...
Jammer Bluetooth 2.4G
Proyecto de PCB para Jammer bloqueador inhibidor de señales Bluetooth y Wifi de 2.4G.Proyecto patrocinado por PCBWay, muchas gracias por el apoyo!Primero regístrate en PCBWay haciendo clic acá, luego ...
Bruce RF Reaper PCB
Explore!https://bruce.computer MCU ESP32 S3 N16R8BATTERY 1000MAH6 WAY BUTTONAW9523 IO EXPANDERNRFCC1101 433MHZNFC ST25R3916VIBROBUZZERIR TX RXIBUTTONSDCARDLEDGPSFLIPPER ZERO HEADER COMPATIBL...
ESP32 Walkie Talkie
I've made some ESP32 walkie talkies with ESP-Now protocol communication, i2s microphone, i2s DAC speaker, 3D printed case and a lot more!
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