This project is created for my Wifi LokRemote project (https://github.com/nygma2004/Wifi_LokRemote) so I can control my locos using a physical control as opposed to a mobile phone. This project contains a ESP32 Wifi microcontroller which is communicating with the Wifi LokRemote over wifi sending direction, speed, light and sound commands over UDP messages.I have done all the documentation for this project on my GitHub page: https://github.com/nygma2004/Wifi_ThrottleYou find the 3D printed case, the arduino code, schematic and the BOM there.

ESP8266 based IR receiver and transmitter with temperature sensor and USB Type-C! Designed for controlling Aircons via IR.It uses high power (100mA+) 3mm IR LEDsParts needed:ESP8285-M2 https://s.click.aliexpress.com/e/_ACJtE5TSOP4838 https://s.click.aliexpress.com/e/_9fOGkVTSAL6400 https://s.click.aliexpress.com/e/_A58wgHDS18B20 https://s.click.aliexpress.com/e/_9IIWdRAMS1117-3.3 SOT89 https://s.click.aliexpress.com/e/_9uf2AtBSS138 SOT23 https://s.click.aliexpress.com/e/_Admg73USB Type-C 6P https://s.click.aliexpress.com/e/_A0JKIaUSB Type-C Cable https://s.click.aliexpress.com/e/_9hcSzf2*4*3.5mm SMD button https://s.click.aliexpress.com/e/_AamunF0603 resistors https://s.click.aliexpress.com/e/_9fCXRR0603 capacitors https://s.click.aliexpress.com/e/_APjiSp0603 8P resistor arrays https://s.click.aliexpress.com/e/_9I7p7X0603 LED https://s.click.aliexpress.com/e/_AnUhU1https://s.click.aliexpress.com/e/_ACJtE5

"Fake" Elgato Eve Room (2020) Apple HomeKit compatible temperature, humidity and air quality sensor using SHT3x, IAQ Core-C and OLED ScreenFeatures:Temperature Sensor accessoryHumidity Sensor accessoryAir Quailty Sensor accessoryVOC Density and CO2 densityOLED screen with Air Quality starsSwitching Temperature Display Units between Celsius and Fahrenheit (requires Eve app)Downloadable User Manual (requires Eve app)Reset buttonPart Links:ESP12F/E SHT3x Sensor1.3” SSD1306 OLED displaySMD 0805 resistors SMD 0805 capacitorsAMS1117-3.34.5x4.5 buttonUSB Type-C2.54mm 90 degree female header2.54mm header (optional) http://s.click.aliexpress.com/e/uTY0Z6C

PMSx003 I2C bus adapterFunctions:converts PMS1003, PMS3003, PMS5003, PMS7003, PMSA003 from UART to I2C bus communicationTwo I2C bus addresses3.3V operating temperatureBoost converter to power the PMS from 3.3VRevisions:v1.0.0 - first releasev1.0.1 - added ICSP Pins for flashing the bootloaderParts list:Atmega328P https://s.click.aliexpress.com/e/_AM3QO5SMD 0805 capacitors https://s.click.aliexpress.com/e/_9QWm9vNCP1402 https://s.click.aliexpress.com/e/_AeZ9Iv0603 Resistor array 10K https://s.click.aliexpress.com/e/_AKC0rJ1N5819 SOD123 diode https://s.click.aliexpress.com/e/_AU6ZdRSMD 0805 induxto 47uH https://s.click.aliexpress.com/e/_A8ClBTCSTCE8M smd3212 8mhz crystal https://s.click.aliexpress.com/e/_Ao98D31.25mm smd 8p connector https://s.click.aliexpress.com/e/_Apegwz2x5p 1.27mm smd female connector https://s.click.aliexpress.com/e/_9v8aIzhttps://s.click.aliexpress.com/e/_AM3QO5

This project is a wifi controller for large scale garden railway locomotives. It uses a ESP32 microcontroller to generate a webpage so you can control your loco on from your smartphone, or tablet. This provides and cheaper entry into battery control by not having to purchase a separate transmitter. And of course you are welcome to modify the code for your own scenario.A more complete documentation of this project is on my GitHub page with the source code.Please check the Arduino Sketch for the ESP code: https://github.com/nygma2004/locoremoteAlso have a look at my prototype video where I talk about the features of this controller: https://youtu.be/NFEwV57PYEw

ESP8266 based IR receiver and transmitter with temperature sensor, OLED support and USB Type-C! Designed for controlling Aircons via IR.It uses high power (100mA+) 3mm IR LEDs, the OLED screen was changed to the most common GND-VCC-SCL-SDA pinout! :-) Parts:DS18B20 temperature sensor https://s.click.aliexpress.com/e/_99V0PIVSLB3940 3mm IR leds https://s.click.aliexpress.com/e/_AWfhgrTSOP4838 IR receiver https://s.click.aliexpress.com/e/_AdjYIr 0.96" OLED display https://s.click.aliexpress.com/e/_AUVz91USB Type-C https://s.click.aliexpress.com/e/_A0JKIaAMS1117-3.3 SOT-89 https://s.click.aliexpress.com/e/_ADO3w7BSS138 SOT-23 https://s.click.aliexpress.com/e/_A1pCSn0603 resistor array (5.1K, 33R) https://s.click.aliexpress.com/e/_AtcQuL2x4x3.5mm smd button https://s.click.aliexpress.com/e/_9w4Ct5

"Fake" Elgato Eve Weather (2021) Apple HomeKit compatible temperature, pressure, humidity sensor using BME280 and OLED ScreenPick and Place file for odering: https://github.com/HomeKidd/ESP8266-HomeKit-New-Eve-Weather/raw/main/images/PickAndPlace_HomeKid_Weather_v1.0.0_2021-04-08.csvFeatures:Temperature Sensor accessoryHumidity Sensor accessoryBarometric Sensor accessory (requires Eve app)Characteristic for detecting your altitude (used for proper barometric calculation, requires Eve app)12 hour Weather Forecast (requires Eve app)OLED screen with weather iconsSwitching Temperature Display Units between Celsius and Fahrenheit (requires Eve app)Downloadable User Manual (requires Eve app)Reset buttonPart Links:ESP12F/E (Bosch BME280 I2C bus sensor1.3” SSD1306 OLED displaySMD 0805 resistors (10K, 5.1K)SMD 0805 capacitors (10uF, 100nF)AMS1117-3.34.5x4.5 buttonUSB Type-C2.54mm 90 degree female header2.54mm header (optional)

ESP8266 based IR receiver and transmitter with temperature sensor, OLED support and USB Type-C! Designed for controlling Aircons via IRFeatures:DS18B20 temperature sensor https://s.click.aliexpress.com/e/_99V0PITSAL6400 5mm IR leds https://s.click.aliexpress.com/e/_A1FAAKTSOP38238 IR receiver https://s.click.aliexpress.com/e/_A8gmhK 1.3" OLED display support https://s.click.aliexpress.com/e/_9RbYd2USB Type-C https://s.click.aliexpress.com/e/_A0JKIa

This ESP8266 sketch communicates with a Wiegand RFID reader and keypad. Ket features:Connect ot local MQTT serverSend RFID codes over to MQTTCollect keypad presses and until # is pressed and send as a pin code over MQTTBlock RFID readings and pin code entries too close to each otherNeopixel LED provides visual feedback which is controller over MQTTRead ibutton keycards using a ibutton (one wire) readerUse A0 input as a digital input (e.g. state of the gate, garage door)4 relay outputs to control gates, garage doors, lights, etc.Please follow this project on my GitHub where you can find the Arduino sketch, Node-Red flow and also the BOM.

Prototype PCBESP8266 Based ? HomeKit Air Purifier project using PMS7003 PM2.5 sensor, SHT3x temperature/humidity sensor, PWM controlled 12V fan and a Xiaomi Air Purifier Filter??Currently the firmware is not finished yet, but it can be used with Arduino!GPIO Pinout:Fan PWM - GPIO15PMS7003 TX - GPIO12PMS7003 TX - GPIO13PMS7003 SET - GPIO16I2C Bus SCL - GPIO5I2C Bus SDA - GPIO4Main Parts needed:Wemos D1 Mini - https://s.click.aliexpress.com/e/_98rvjqPMS7003 - https://s.click.aliexpress.com/e/_dX9Hv8F12V fan - https://s.click.aliexpress.com/e/_d6EcFOXXiaomi Air Purifier Filter - https://s.click.aliexpress.com/e/_dYLu1bZSHT3x sensor - http://s.click.aliexpress.com/e/qAfJeXuk12VDC 3A+ power supply - https://s.click.aliexpress.com/e/_A962x6

Garage Door Opener PCB with ESP8266 and Sonoff DS18B20 temperature sensor designed for Smart Home applications.The PCB was designed for my Apple HomeKit Garage Door Opener project (https://github.com/HomeKidd/HomeKit-Garage-Door), but it can be used with other (eg.: Arduino) projects too! :-) GPIO Pinout:GPIO0 - Button / FlashGPIO2 - Built-in LED (on ESP12 only)GPIO4 - Relay (active high, dry contact)GPIO5 - DS18B20 (or any Sonoff sensor)GPIO12 - S2 Input (external pullup, active high)GPIO13 - OBS Input (external pullup, active high)GPIO14 - S1 Input (external pullup, active high)GPIO15 - 3mm Red LED (active high)Pick and Place file for PCB Assembly:https://raw.githubusercontent.com/HomeKidd/HomeKit-Garage-Door/master/Garage_Door_PickAndPlace_1.0.2_2021-01-30.csvParts Needed:Garage Door:2P 5.08 screw terminalhttps://s.click.aliexpress.com/e/_98JAVpDB207Shttps://s.click.aliexpress.com/e/_AUoXOB100uF 50V SMD 8x10mm https://s.click.aliexpress.com/e/_AEa2RlLM2575S-5.0https://s.click.aliexpress.com/e/_AUWcjN1N5819 (SS14) SMA https://s.click.aliexpress.com/e/_AnNY9tCDRH74https://s.click.aliexpress.com/e/_AToTv9330uF 6.3V SMD 6x7mmhttps://s.click.aliexpress.com/e/_AVnShZSMD0805 capacitorshttps://s.click.aliexpress.com/e/_9QWm9vAMS1117-3.3https://s.click.aliexpress.com/e/_A0nLKJ6x6x5 Tactile button (right angle)https://s.click.aliexpress.com/e/_ADidBhOmron G5V-1 5Vhttps://s.click.aliexpress.com/e/_Af2VjZPJ-218Ahttps://s.click.aliexpress.com/e/_A8rfSr1N4148 SOT-123https://s.click.aliexpress.com/e/_9vPevZ15EDG 3.5mm screw terminalhttps://s.click.aliexpress.com/e/_AE89d92N3904 SOT-23https://s.click.aliexpress.com/e/_AKWhvV3mm Red LEDhttps://s.click.aliexpress.com/e/_AmZfVlSMD0805 resistorshttps://s.click.aliexpress.com/e/_AK7Kd1Sonoff DS18B20https://s.click.aliexpress.com/e/_A4o5XpBMD60001 80x50x19mm enclosurehttps://s.click.aliexpress.com/e/_AkoJXDESP12E/Fhttps://s.click.aliexpress.com/e/_AC5xkFESP07Shttps://s.click.aliexpress.com/e/_9Gw3eJ

I make this to control a home water supply in a weekend house. It's checks the water level in the buffers and starts the pumps if needed, etc.But you can program in anything you want!Features:10 Logic Level Input with 3-32V input range. Optocoupled, but not isolated!8 NPN Output with Open Collector for relays. Optocoupled, but not isolated! Use high current optocoupler, like the TLP627.8 CMOS 5V Output for LEDs (max 15mA). Not optocoupled, not isolated!I used a PIC16F819, but you can use any other pin compatible model.The outputs are driven through two 74HC595, so your program must use software or hardver SPI to send data to the outputs.

I created it as a minimalistic Christmas gift to friends and relatives, and I am quite pleased with the result - the transition is smooth, other colours can be implemented by changing the LEDs and the resistors, and only a small number of components is needed. Power consumption is also minimal, so there is no heat build-up, and it can be on all day. The transistor count could be reduced, but they look like little ornaments on the tree so I left them as they were :) Soldering the Micro USB can be tricky (you have to bend the leads and elevate it a bit) but it's not a challenge for an experienced solderer.

Tiny adapter for Plantower PMS7003 Air quality sensor. Converts the male 1.27mm 10P connector to 2.54mm :-)You can secure it with some double sided tape :-) PMS7003https://s.click.aliexpress.com/e/_dTMid6c1.27mm 2x5 pin femalehttps://s.click.aliexpress.com/e/_d8yHbWKhttps://s.click.aliexpress.com/e/_d8yHbWK