Interfacing MIFARE RC522 RFID Module With Arduino

     MIFARE RC522 is an IC from NXP used for contactless communication. It uses 13.56 MHz electromagnetic field to communicate with the tag with a typical operating distance of upto 5 cm depending on antenna size and tuning. The IC supports SPI, I2C and UART protocols. The MFRC522 reader supports ISO/IEC 14443 A/MIFARE and NTAG.…

Using FreeRTOS with AVR

Hi techies and hobbyists, We are excited to work with a nice freeRTOS port for Arduino and AVR based microcontrollers by Felipu. Given below are the steps to use this amazing library with Arduino boards. We changed our Arduino development platform to PlatformIO and found it a good IDE for both beginners and professionals, having…

Setting Up Bluetooth In SIM800 GSM Modem

The SIM800 series GSM modules from SIMCOM supports Bluetooth functionality. In order to avail this functionality you might need to update the firmware of the GSM modem you have. This blog post is intended to show you how to enable the Bluetooth functionality in SIM800 modem. To test whether your GSM modem firmware supports Bluetooth give the…

Updating firmware of SIM800 GSM Module

The SIM800 GSM modem series from SIMCOM offers a lot of features like, SD card interfacing, Bluetooth functionality, FM etc.. In most cases a firmware update is required to avail these features. This post is intended to give an idea about how to update the firmware of SIM800 modems. What you need: SIMCOM SIM800 GSM…