3D Printed Gameboy and Remote Controller with tinyK20 Board

As a remote controller for the Sumo robot (see “Zumo Robot with Magnetic Encoders“) we have used so far a combination of NXP FRDM-KL25Z board and a Joystick Shield (see “Joystick Shield with nRF24L01 driving a Zumo Robot“). That solution was not ideal, so this weekend I created a 3D printed prototype:

tinyK20 Remote Controller

tinyK20 Remote Controller

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Zumo Robot with Magnetic Encoders

We are using robots to teach advanced embedded system programming at the Lucerne University (see “Sumo Robot Competition“). Students can buy the kit, and we are running out of available hardware. Time to produce a new series of robots :-). It took us a while to get to the next revision of the Zumo Robot, but finally the first one has been produced and assembled, and I think it is looking good :-).

Intro_Zumo_Robot

Intro_Zumo_Robot

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First of Spring: Crokus

Image

It has been extremely busy weeks, and I’m my technical blog article output currently is very low. So I thought I could post two pictures of blooming Crocus in my backyard instead. I admit: that takes less time than writing up a 2000 words geeky technology article. And I know that some of you might say “Flower pictures do not count!”. But hey, I say that the Crocus is a very beautiful flower, and in many aspects nature is ahead of technology:

Crocus

Crocus

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nRF24L01+ 2.4 GHz Wireless Connectivity with the tinyK20 Board

I’m using the tiny and inexpensive Nordic Semiconductor nRF24L01+ transceiver (see “Tutorial: Nordic Semiconductor nRF24L01+ with the Freescale FRDM-K64F Board“) in many projects: it costs less than $3 and allows me to communicate with a proprietary 2.4GHz protocol in a low power way (see “IoT: FreeRTOS Down to the Micro Amps“). I have that transceiver now running with the tinyK20 board too:

nRF24L01+ Transceiver with tinyK20

nRF24L01+ Transceiver with tinyK20

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Tutorial: Blinky with the FRDM-KL27Z and Kinetis SDK v2

I’m using the FRDM-KL25Z in my classes, and that board is very popular: low price (<$15), reasonable features (48 MHz ARM Cortex M0+, 128 KByte of FLASH, 16 KByte of RAM), and many tutorials elsewhere and on McuOnEclipse :-).

For the next (Fall) semester I’m looking for alternative boards, and one is the Freescale (now NXP) FRDM-KL27Z:

FRDM-KL27Z with Box

FRDM-KL27Z with Box

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Dealing with Code Size in Kinetis SDK v2.x Projects

I’m exploring the Kinetis SDK v2.0 (see “First NXP Kinetis SDK Release: SDK V2.0 with Online On-Demand Package Builder“). For this, I’m using the ‘standard’ way: blinking the LED on the board 🙂

Blinky on FRDM-K64F Board

Blinky on FRDM-K64F Board

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