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Showing posts from May, 2017

RDA5807M FM radio module for Arduino

I was surprised with it's ability to receive FM radio broadcast without any problem in such a small module. The size is not bigger than a coin, really small. It may a bit difficult for wiring but it can be done. You can also add small power audio amplifier and use small speaker directly. Here is the module chip, small power amplifier in prototyping pcb.

DS3231 RTC Module

This module is very useful if you want to create project with time related data such as data logging, alarm and clock. This module keep track the time even the system has been turned off. Thanks to small coin battery installed on this module. Once it has been set, module will keep track the time as long as battery is still life.

OLED 128x64 0.96" I2C as Arduino display

This display is really small but has nice contrast. The display still perform very well even with different viewing angle, not like LCD or TFT. It also has only 4 pin using I2C interface. Very easy to configure.