HD44780 LCD with PWM LED Backlight control

And voila! As I said in one of the last two posts (Initial post: https://hsel.co.uk/2014/08/14/stm32f0-discovery-board-and-the-hd44780-lcd/ and integrating a charge pump for backlight control: https://hsel.co.uk/2014/08/14/stm32f0-discovery-board-with-hd44780-and-integrated-charge-pump/), I’ve now included a generic LED backlight PWM controller using one of the standard GPIO pins. I’m using GPIOA Pin 6 to drive the LED backlight and I’ve integrated a 4bit (16 step) backlight […]

Servo tester part 2.

So! I decided that I wanted to properly test my servo tester (testing a tester… wuhhh?) so I bought myself some really cheap servo’s on eBay. When I say really cheap, I mean REALLY cheap! I spent a whopping £3.99 on a pair and that was with postage included (eBay Item: http://goo.gl/fACHpo as per usual, link […]

Phobass V!

Finally, after a fair few months, big things are happening in the Phobass department! I’ve had a bit of a break from the development as the smart watch had taken my interest but things have recently swapped. I’ve completely redesigned the neck, made a new, sleeker menu PCB, along with modifying the motherboard to include […]

STM32F0 Tutorial 2 – SysTick

One of the most cool features of the ARM Cortex series of processors is the SysTick. The SysTick is a 24 bit timer with a user configurable prescalar which can be used for simple variable incrementing tasks such as incrementing a second counter or similar. For the example of done, I’ve made the SysTick counter […]

Watch 2 Update

Its been a pretty hectic exam period (It hasn’t really, I just didn’t really know what to start the post with!) but I’ve regardless managed to finish Watch 1, finish most of the construction of Watch 2, design and send off for Watch 3 and learn a fair bit about Visual basic along with way! […]

Farnell!

For the first time in a good few years, I got my first order off Farnell! I had a bit of a ‘mare’ the other night as I realised that my soldering iron had broken and just as I was about to receive the PCB’s for Watch 2. So as my closest easy access and […]

Eon Smartwatch – 80% completion improvements

One of my original sources of inspiration was from an awesome youtuber’s product (Dave Jones and his μWatch – Youtube: http://goo.gl/OjkGjg, the μWatch itself: http://www.calcwatch.com/index.html). This guy is absolutely brilliant and some of his youtube video’s are utterly hilarious! I’ve got him to thank for his brilliant video on product design on helping me design both the newer versions […]

Eon Smart Watch – 13/5/14

Its been a long time since I last did an update about this but today was a great day for progress! I gave it a bit of a rest because my design was a bit dodgy and I forgot to bring out the SWO pin (PB3) but after more in depth research, it turns out […]

Phobass PCB’s

Wahoo! Today, to my utmost surprise, all the way from the eastern lands of Asia, my PCB’s arrived! Its been somewhat fast from PCB order to arrival (around 2 weeks, the standard time for an ITEAD order). I’m really happy though the silkscreen quality on the motherboard PCB’s seems to have deteriorated a bit. Regardless, […]