@masterofstuff124 I can’t read the part numbers in the two 8 pin ICs to the left and right of the MCU… Could you please write that down?
You got one already? Are you going to make a sweet case for it?
^not mine asked nicely for some pics.
well the main chip is this. http://en.wikipedia.org/wiki/EFM32 -an arm microcontroller(pretty dope)
efm stands for energy friendly micro controller. i wonder how long the batt life will be on two AA’s. might have to hack a stupidly large lipo/charger to the 3v in.
That MCU requires less than 10mA at full throttle. Idem for the display. The output amplifier would take 30mA, assuming 100mW. That mean a couple AAA alkaline batteries would last 1000 / 50 = 20 hours, or more…
Looking like AA batteries to me, and my Eneloops are about 1900-2000mAh Though if I’m wrong, my AAAs are still about 950 iirc.
The IC to the right is the Texas Instruments TPA6111A2 stereo audio amplifier (40mW @ 32ohm / 3V).
Yeah, not sure if those are AA or AAA either…
So a portable drum machine and (probable) fx unit with a nearly 40 hour battery life for $50.
This thing is definitely an exercise in minimalism… I can’t be sure without the part number, but I guess the IC to the left is a stereo pre-amp to boost the sound input before the ADCs.
Also, I bet TE is going to use a custom made LCD screen that will bring fond memories of Nintendo Game&Watch devices…
Anyone know when/where we can actually get one?
According to Synthopia:
First we got the op-1…
Next we’re getting the po-12…
I wonder what the op-123 will be…
cuckoo has confirmed they are AAA’s