Tags64-pixels adapter AVR battery bulb car customs DSO fireworks firmware good old days hack happy new year hardware IKEA import lecroy LED light lighting linux MBI5168 modding open source oscilloscope PCB power supply prototype PWM rant remote review RGB RoHS Samtid Seeedstudio SMD soldering teardown trigger upgrade WaveAce 224 weller WS2812B youyue
Category Archives: Arduino.
This firmware for the ISML + HC-05 Bluetooth module currently implements the same simple interface as the current WiFi-code named ‘browser_control’.
Pairing the ‘HC-05’on linux using the command line (openSUSE 13.2): When first powered on, the HC-05 module will … Continue reading
Someone, I won’t mention any names here, practically coerced me into upgrading this little project a bit. Now there’s the option to add a bluetooth module (HC-05, JY-MCU “ZS-040”), which supports remote code upload, or a WiFi module (ESP8266-1) using … Continue reading
This upgrade is based on the loved-by-everybody WS2812B intelligent RGB LED and works just fine with Adafruit’s NeoPixel library. The concept is – once again – rather simple. Whack a lot of WS2812B RGB LEDs onto a small board, add … Continue reading
Adding some more stuff is always fun.
The lack of an ISP connector on this board has given me a lot of grief. This little adapter board will solve that problem once and for all. It also provides a couple of through-hole pads for potentially adding some … Continue reading
Possibly (and hopefully) the last post in this little hot-air station series. I’ve opened and closed that device far too often – and popped out the chip multiple times in each instance. You see the designer failed to add a … Continue reading
After tweaking some control loop parameters and adding a hard-limit for the temperature (heater cut-off + resetting the error term, effectively restarting the loop), the massive temperature overshoots are a thing of the past. I declare this a success. “Some … Continue reading
In part one I dealt with the very basics: fan control, buttons and the display. Now it is time to attack the business end of this device! Safety warning / disclaimer: Please understand that operating a device powered by line-voltage, … Continue reading
The YOUYUE 858D+ I have in my possession uses an AVR ATmega8 microcontroller to control the fan-speed, drive a 7-segment display, read 2 buttons and drive the TRIAC via an opto-isolator.
No more software PWM, no more LED driver chips, just intelligent LED pixels. These things come with integrated controllers/drivers and support 24bit colors (8bit per R,G,B). This makes projects smaller and is much easier on the microcontroller, no more need … Continue reading
I’m probably not the first one to do it, but it is still a very good idea. Especially when combined with a product like ‘Parted Magic‘. Ultimate usefulness. Save / restore / backup / image computers – AND – code … Continue reading
Recently I bought a small IR remote control + matching (38kHz) demodulating receiver at Adafruit. I just couldn’t find such a small remote over here. As it turns out the remote uses the extended NEC data format, which is nicely … Continue reading
Since the release of Arduino 1.0, some libraries have seen a huge increase in compiled file size. This is _not_ a fix for those. This will be taken care of the community sooner or later! Here are a few general … Continue reading
“This time of the year” is approaching __again__. Where did all the time go? I remember having seen my neighbours’ light shows and illuminated windows as if it had been just yesterday. But this year I will fight back! I’ll … Continue reading
I’m still alive — physically that is. Recently I felt the urge to do some soldering an I promptly succumbed to it. 3 days later I was done and totally fed up with having to solder using the “W-word”. The … Continue reading
The RGB LED Ring is available as a DIY SMD kit! Honestly, ignore the next two paragraphs :-) Well as of next Monday 18:00 CET to be honest (May 17th 2010). I’ve already added it to zen-cart, but it’s still … Continue reading
A few days ago I visited my parents. The main purpose was to ‘deposit’ my new Lecroy WaveAce 224 DSO. I bought it as a gift for myself, but I haven’t fulfilled all criteria to receive the gift yet. Therefore … Continue reading
I was having problems with the “led ring” boards. Their internal oscillators were not ticking with the same speed and required constant re-syncing. I tried to improve the situation by recalibrating by adjusting the OSCCAL registers. Recalibration can be done … Continue reading