Tag: module
Raspberry Pi Wifi module without USB
This board will let you add WiFi functionality to your Raspberry Pi Zero without having to sacrifice the only available high speed USB port. The board is based on ESP8266 Wifi module. WiFi on a Raspberry Pi using the HAT connector and an ESP8266. The goal of this project is to add...
Continue Reading1.3V – 15.5V @ 2 Amps Power Supply
Here is a low cost and easy to build power supply based on a some Chinese DC-DC converter modules: This is a small size power supply with low cost and easy to make that only taking about 5 more hours. I was very happy with it and would share with you. Power Supply...
Continue ReadingConnecting HC-05 Bluetooth Module to Arduino
TechDepot Egypt @ instructables.com has published a tutorial on how to connect a HC-05 Bluetooth module to Arduino. Turorial shows how to connect the module with Arduino and example code is included. It is worth noting that the HC-05 power in (Vcc) uses 5V, while the transmit and...
Continue ReadingProgrammable CW Morse beacon
Marko Pavlin has designed a Mini USB dongle with STM32F0xx that is connected to USB and controlled via command line interface. Mini USB dongle with STM32F0xx is suitable many for simple, mini projects. I attached speaker to Timer14 PWM output (Pin PA6) and LED (or optocoupler...
Continue ReadingESP8266 Troubleshooting Guide
In this article Rui Santos help us solve the main issues that may arise when trying to flash a new firmware or uploading scripts on ESP8266 Wifi module. He discuss about NodeMCU flasher and how to use it successfully and also he discuss about ESPlorer IDE and it's use. ESP8266...
Continue ReadingOSHChip – general purpose processor board in DIP format
OSHChip is a general purpose processor board based on ARM Cortex-M0 32 bit processor running at 16 MHz. It includes 2.4 GHz Bluetooth Low Energy radio and a broad range of built-in Peripherals. It features 256 KBytes of Flash memory for program and data and 32 KBytes of SRAM. All this...
Continue ReadingLux Meter Module
LUX Meter project has been design to measure the illumination. Illumination is luminous flux falling on surface area of photo diode. This illumination converted to corresponding voltage using Op-Amp circuit. Specifications Supply 9 VDC PP3 Battery @ 20 mA Onboard Photo...
Continue Reading4 CHANNEL INFRARED REMOTE MODULE
4 Channel Infrared (IR) Remote is a simple project using the popular HT12A and HT12D encoder / decoder chips from Holtek. Specifications Supply – Transmitter: 2.4 ~ 5 VDC, 5 V @ 20 mA & Receiver: 5 ~ 6 VDC, 5 V @ 50 mA Output – 4 Latched/Momentary TTL compatible...
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