Author Archives: ruditronics

Freetronics Cube + NFC Tag + Arduino Leonardo

I bought RFID-RC522 NFC reader online. You can get them from Ebay or DX for <$10. The board is based on NXP  MFRC522  and has on pcb RFID antenna. Arduino website has online material on how to interface MFRC522 to Arduino board.

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Teardown – Portable Burger Speaker

This is a “Skylanders” theme portable burger speaker. I got this from local BigW for $10. This speaker has built in rechargeable battery, with output rating of 2W rms and 3.5mm audio jack. A similar speaker from BigW can be … Continue reading

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Freetronics Cube & Ultrasonic Sensor

I got this Cube from a friend who bought from Freetronics at Sydney’s Mini Maker Faire last year. It is 4x4x4 LED matrix cube with onboard ATmega32u4 micro. It has Arduino bootloader and has various i/o breakout. If you have … Continue reading

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Teardown – HPM D809/1 Timer

The HPM D809/1 is an analog 24-hour mains power timer, which can be set to switch on/off device connected through it. In Australia, this can be purchased at local dick smith store or local Bunnings warehouse.         There … Continue reading

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JY-MCU 3208 – Ping Pong Game

Following the previous post, I coded a simple pong game utilising the analog signal to control the bat. Below are the code snippets. Post a comment below if you want the full code.

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JY-MCU 3208 – Simple clock & ADC

I got this relatively cheap LED matrix panel from Dealextreme. It is a 32 x 8 LED matrix with an on-board ATMEGA8 micro and HT1632C controller. The board also includes ISP connector, DC jack, 3 SMT buttons and cheappy  crystal … Continue reading

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