I got asked by a friend one day to help refurb a set of 4 bubble lamps which only glowed white so i happily accepted and this is how we went about it. I wish i had taken more picture at the time but this is all i have below but i will try and describe what we did to pimp these lights.
First problem i seen was that the power system was really bad because the bubble lamps where basically shop bought 240VAC lamps bodged into a limo, somone in all their original genius thought they would use a 150W inverter to boost the 12VDC car battery up to 240VAC and then plugged in the wall adapter which dropped it back 12VAC for the aquarium pump and lamp. so in an attempt to increase safety and efficiency i made a quick 555 IC circuit tuned to around 50hz which worked like a charm pumping the bubbles. The RGB LEDs where controlled by an atmega8 that just run a couple of loops and had some beefy Mosfets connected to allow them to control a lot of lights at any one time but less talk more pictures.
A quick pic of the bubble lamp in a sorry state before we set to work on it
The eagle CAD drawing of the top and bottom circuit for the RGB Lights
Top View of PCB with 6 x 78XX voltage regulator circuits and 4 x RGB light controllers attached
Side View of PCB which was made using positive photo resist and UV lamp
Top View of finished PCB which was cut out using a bench scroll saw
Well Some good news i have been lucky enough to be given a free MediaTek LinkIt™ ONE Development Platform worth £38 for free no strings attached from Instructables.com in partnership with MediaTek. I know i said no strings but they would like me to post a few instructables showing how good the Dev Board is which is only fair but thats not all for every instructable i post i will receive a $50 Amazon Gift Card (about £32) so i am planning on working hard on this one which i hope will lead to a lot more offers to review more great product like this one.
Ok what is it and what can it do? Well from what i have read so far it seams to be aimed at the Internet of Things (IoT) and wearables market and they have done a great job packing a ton of feature into the one board. For starters you get wireless technology coming out of the wazzoo with onboard Bluetooth 2.1 and 4.0, 802.11 b/g/n Wifi, GSM QuadBand and GPRS Class 12 not to mention you also have GPS/GLONASS/BeiDou, SD Card (upto 32Gb), 16Mb of onboard flash (10Mb user accessable) and 4Mb of ram (upto 2Mb for program execution) all tied together with a MT2502A (Aster) ARM7 EJ-S™ 260MHz processor which is not bad plus from what i can tell you also get a rechargeable battery in the box to power this little power house.
As soon as i get the board i will post an unboxing video and a quick run though of all the cool things that this great board comes with but for now you can read more here. Hopefully this will be the beginning of a long line of products company’s will send me to review and road test because i love playing with these great toys and i hope to share my adventures with you all.
Until next post Keep on hacking the world and if you have any ideas on what to build with this great board please let me know in the comments and i will see what i can do.