More peripherals

After the first week staying with the little raspi, I guess it is not designed to stay powered for more than 3 hours. Don’t have a termometer in hand, but with touching it suggest a 50-70 degree on both chips.

If I wanna carries it around working headless, there must be some kind of heat radiation. Let’s go for more hunting!


  1. VGA ram heat sinks
  2. 20mm VGA fans x 2

Bluetooth be a boot up device?

After some Googling and studies, finally I can pair my ProMini with raspi. It seems the shift key is not working, don’t know what’s wrong. But while it works normally with my Mac and PC, I moved to the next step and stucked there — auto connection.

Seems the bluez library isn’t well documented in this, or it just leaving this for developers. If it is the case then I’ll have to write my own service for detecting the keyboard. (awe… headache)

Google suggest bluetooth over linux CLI is kinda poorly supported, developed and documented… well let’s keep studying.

Bluetooth being a boot up choice.

While aiming to make this little thing fully mobile, I kept searching for USB-compatible li-lon batteries and a palm-sized usb keyboard.

Tried setting up the bluetooth keyboard as a boot-up device, it seems I picked something not too suitable. Had difficulties setting up auto connection between the ProMini and Raspi… bluez library didn’t seem well documented, maybe it doesn’t even provide auto-pairing?

Don’t mind writing my own service for this, but first let’s make sure the bluez really meant to leave it to developers. 😐

Peripherals hunting

Bluetooth Keyboard, MAGIC-PRO ProMimi, soldering, solder

Sometimes it’s a headache when you walk into a electronics shop and have no idea on every single thing, especially when you got something lies between two categories. After a full day of shopping, asking and chit chats with those shop keepers, I decided to start with some basic equipments.

Here is what I got,

  1. MAGIC-PRO ProMini bluetooth keyboard (with trackball)
  2. 30W Soldering gun
  3. Solder

I guess I have to spend another whole day in the books…

Devices are meant to be smaller

Raspberry Pi

Got my little raspi board last month, excited to explore its possibilities.

Not to be confused with some low level electronic boards like Arduino, this board is a fully functional computer designed to run a linux platform.

It’s hard for pure software engineers to even touch the soldering gun, but the excitement is just dragging me towards the electronics realm. (LOL)

Stay tuned.