Bluetooth receivers

Posted: 2017-09-23

So the Dalek needs to be able to play back Dalek noises.

I did wonder about arduino, wave shields etc - but I decided on a simpler approach.

I'll give it a bluetooth audio receiver and just use my phone to playback (any music app - iTunes or whatever). Then the sounds can just be audio files (and I can also use it as a bluetooth speaker for other things).

So I found that there is a cheap stereo bluetooth receviver out there - the BLK-MD-SPK-B-G. For more specs you can take a look at the wiki page

I'll need to connect some kind of speaker set to pins 3/4/5 and give it power on 12/13.

It's set up for a single cell lipo (wants power between 3.4 and 4.2v) - and I'm planning on powering from a USB charger - so I'll need a simple voltage divider or regulator here.

Oh - and it's far far smaller than I expected. Didn't read the specs :) I thought it'd be about 20x30 mm - it's actually 14x23 mm and with very very small soldering points. Will have to solder really carefully.

BLK-MD-SPK-B-G bluetooth receiver in hand
BLK-MD-SPK-B-G bluetooth receiver in hand

Latest flickr images

Femsjøen sky
A first test of the Sky-Watcher Star Adventurer tracker head. This shot is made up of 10 shots - each 2 mins at f/2,8 ISO 100 14mm. Merged using Starry Landscape Tracker then adjusted in PS (merged in one shorter exposure at the bottom to get a a sharper land silhouette. You can see that even out of town - still struggling with light pollution - far too much light in the sky. But - still fun to play with.
Langlielva near Elveli
Introduction between a norweigan fjord horse and a halfling to see if they could share a paddock. The introduction went well - they now keep each other company in the paddock every day
Evening trees
Mist settling over the trees on a hillside behind a ploughed field