Author Topic: Theremin based on the stm32f103c8t6 and bluepill, stm32duino  (Read 503 times)

Offline profdc9

  • High Voltage Engineer
  • ****
  • Posts: 214
  • Karma: +10/-0
    • View Profile
Theremin based on the stm32f103c8t6 and bluepill, stm32duino
« on: September 15, 2018, 10:55:33 PM »
Hello,

I made a theremin based on a STM32 microcontroller (the $3 bluepill).  You can see me play it in this video

/>
The theremin as you can see is quite sensitive.  I actually put a fiber optic output on the board so I can program it to be an interrupter for a DRSSTC.

The parts are very inexpensive and the circuit is fairly simple.  The PCB, schematics, and the software are on a github

https://github.com/profdc9/MCTheremin

If you want to try to build it let me know.  Enjoy!

Dan



Offline futurist

  • Global Moderator
  • High Voltage Technician
  • *****
  • Posts: 116
  • Karma: +0/-0
    • View Profile
Re: Theremin based on the stm32f103c8t6 and bluepill, stm32duino
« Reply #1 on: September 17, 2018, 08:57:40 PM »
Nice job! Do you think it would be possible to omit external DAC if using STM32F103Rx series? That would also be a nice upgrade to gaudi's opentheremin v3

Offline profdc9

  • High Voltage Engineer
  • ****
  • Posts: 214
  • Karma: +10/-0
    • View Profile
Re: Theremin based on the stm32f103c8t6 and bluepill, stm32duino
« Reply #2 on: September 18, 2018, 05:00:57 AM »
I would consider using the STM32F103Rx series if there was a convenient, cheap board like the bluepill you could buy.  The bluepill is $3 on ebay.  It's still much cheaper to use that and a MCP4921 (1.25 USD) than almost any other dev board.  The tinnitus32 theremin (https://github.com/gerdb/tinnitus32) - by the way this is an AWFUL name for a device that is supposed to sound pleasant - uses the STM32F4 but isn't terribly convenient because it doesn't really have a PCB to integrate everything into, though such a thing is possible for the STM32 discovery board.  A form factor like the bluepill or Arduino Nano is very convenient for integrating into projects unlike a whole dev board, though a dev board could be integrated into a project like the OpenTheremin does.

Dan


Offline futurist

  • Global Moderator
  • High Voltage Technician
  • *****
  • Posts: 116
  • Karma: +0/-0
    • View Profile
Re: Theremin based on the stm32f103c8t6 and bluepill, stm32duino
« Reply #3 on: September 25, 2018, 04:00:31 PM »
I thought I saw high density STM32F103 demo boards on ebay for 5-6 $, but it turns out that mcu is medium density so no embeded DACs

STM32F407VGT6 boards sell for 8 $, and since I purchased theremin parts on lcsc using demo board would even be cheaper overall (MCP4921 was around 4$ each on lcsc)
https://www.ebay.com/itm/STM32F407VGT6-STM32F4Discovery-ARM-Cortex-M4-32bit-MCU-Core-Development-Board/282538210960

I wonder if anyone built tinnitus theremin, couldn't find anything on the internet  :)


High Voltage Forum

Re: Theremin based on the stm32f103c8t6 and bluepill, stm32duino
« Reply #3 on: September 25, 2018, 04:00:31 PM »

 


* Recent Topics and Posts

post Re: (DR)SSTC music MIDI files
[Dual Resonant Solid State Tesla coils]
profdc9
Today at 05:36:38 PM
post Re: Help for people buying the "12-48 Volt 1800/2500 Watt ZVS induction Heater"
[Electronic circuits]
hightemp1
Today at 04:56:10 PM
post Re: Strange GDT signals (need to help)
[Dual Resonant Solid State Tesla coils]
Phoenix
Today at 11:55:27 AM
post Re: Help for people buying the "12-48 Volt 1800/2500 Watt ZVS induction Heater"
[Electronic circuits]
hightemp1
Today at 05:51:09 AM
post Re: Help for people buying the "12-48 Volt 1800/2500 Watt ZVS induction Heater"
[Electronic circuits]
petespaco
Today at 04:07:17 AM
post Strange GDT signals (need to help)
[Dual Resonant Solid State Tesla coils]
VNTC
Today at 02:19:24 AM
post Re: Easy access to optimal resonance frequency but the benefit is quite small
[Dual Resonant Solid State Tesla coils]
VNTC
Today at 02:00:48 AM
post Re: Strange gdt waveforms
[Dual Resonant Solid State Tesla coils]
VNTC
Today at 01:33:56 AM
post Re: DRSSTC design questions + project progress
[Dual Resonant Solid State Tesla coils]
Mads Barnkob
May 22, 2019, 08:31:55 PM
post Re: Easy access to optimal resonance frequency but the benefit is quite small
[Dual Resonant Solid State Tesla coils]
dexter
May 22, 2019, 08:31:51 PM
post Easy access to optimal resonance frequency but the benefit is quite small
[Dual Resonant Solid State Tesla coils]
VNTC
May 21, 2019, 11:35:57 PM
post Re: Offgrid 48V solar to 24V battery setup
[Electronic circuits]
Mads Barnkob
May 21, 2019, 09:59:54 PM
post Re: General Oscilloscope Probing Techniques for (DR)SSTC h-bridge
[Beginners]
Mads Barnkob
May 21, 2019, 09:51:27 PM
post Re: ZVS Mazzilli circ with active gate driver - what causes ringing?
[Electronic circuits]
T3sl4co1l
May 21, 2019, 09:49:03 PM
post Re: ZVS Mazzilli circ with active gate driver - what causes ringing?
[Electronic circuits]
82026
May 21, 2019, 09:02:10 PM
post Re: DRSSTC design questions + project progress
[Dual Resonant Solid State Tesla coils]
Vaclav
May 21, 2019, 08:59:57 PM
post Re: DRSSTC design questions + project progress
[Dual Resonant Solid State Tesla coils]
Mads Barnkob
May 21, 2019, 08:28:43 PM
post Re: Identification of unknown embedded computer, help needed.
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Mads Barnkob
May 21, 2019, 08:22:28 PM
post Re: DRSSTC design questions + project progress
[Dual Resonant Solid State Tesla coils]
Vaclav
May 21, 2019, 06:21:37 PM
post Re: Help for people buying the "12-48 Volt 1800/2500 Watt ZVS induction Heater"
[Electronic circuits]
petespaco
May 21, 2019, 06:12:55 PM
post Re: DRSSTC design questions + project progress
[Dual Resonant Solid State Tesla coils]
profdc9
May 21, 2019, 04:06:38 PM
post Re: DRSSTC design questions + project progress
[Dual Resonant Solid State Tesla coils]
Vaclav
May 21, 2019, 03:56:56 PM
post Re: DRSSTC design questions + project progress
[Dual Resonant Solid State Tesla coils]
Vaclav
May 21, 2019, 03:46:56 PM
post Re: DRSSTC design questions + project progress
[Dual Resonant Solid State Tesla coils]
profdc9
May 21, 2019, 02:32:59 PM
post Re: Help for people buying the "12-48 Volt 1800/2500 Watt ZVS induction Heater"
[Electronic circuits]
petespaco
May 21, 2019, 06:12:18 AM
post Re: Offgrid 48V solar to 24V battery setup
[Electronic circuits]
profdc9
May 20, 2019, 11:30:34 PM
post DRSSTC design questions + project progress
[Dual Resonant Solid State Tesla coils]
Vaclav
May 20, 2019, 06:38:54 PM
post Re: General Oscilloscope Probing Techniques for (DR)SSTC h-bridge
[Beginners]
Teravolt
May 20, 2019, 06:33:49 PM
post Re: ZVS Mazzilli circ with active gate driver - what causes ringing?
[Electronic circuits]
82026
May 20, 2019, 02:27:59 PM
post Re: Help for people buying the "12-48 Volt 1800/2500 Watt ZVS induction Heater"
[Electronic circuits]
hightemp1
May 20, 2019, 02:57:46 AM
post Re: ZVS Mazzilli circ with active gate driver - what causes ringing?
[Electronic circuits]
T3sl4co1l
May 20, 2019, 01:06:27 AM
post Re: ZVS Mazzilli circ with active gate driver - what causes ringing?
[Electronic circuits]
82026
May 19, 2019, 09:14:59 PM
post Re: Help for people buying the "12-48 Volt 1800/2500 Watt ZVS induction Heater"
[Electronic circuits]
petespaco
May 19, 2019, 06:40:41 PM
post Re: Help for people buying the "12-48 Volt 1800/2500 Watt ZVS induction Heater"
[Electronic circuits]
flyrod
May 19, 2019, 04:04:12 PM
post Re: Offgrid 48V solar to 24V battery setup
[Electronic circuits]
Mads Barnkob
May 19, 2019, 11:24:46 AM
post Re: ZVS Mazzilli circ with active gate driver - what causes ringing?
[Electronic circuits]
flyrod
May 19, 2019, 03:22:54 AM
post Re: Are bleeder resistors necessary if I can easily discharge my capacitor?
[Spark gap Tesla coils]
profdc9
May 19, 2019, 03:18:52 AM
post Re: Help for people buying the "12-48 Volt 1800/2500 Watt ZVS induction Heater"
[Electronic circuits]
petespaco
May 18, 2019, 10:48:59 PM
post Re: Is one of these good?
[Dual Resonant Solid State Tesla coils]
Golddustpeak
May 18, 2019, 04:19:11 PM
post Re: Help for people buying the "12-48 Volt 1800/2500 Watt ZVS induction Heater"
[Electronic circuits]
petespaco
May 17, 2019, 10:57:17 PM
post Are bleeder resistors necessary if I can easily discharge my capacitor?
[Spark gap Tesla coils]
jpb133
May 17, 2019, 09:41:56 PM
post Re: Is one of these good?
[Dual Resonant Solid State Tesla coils]
Uspring
May 17, 2019, 12:41:17 PM
post ZVS Mazzilli circ with active gate driver - what causes ringing?
[Electronic circuits]
82026
May 16, 2019, 04:15:58 PM
post Re: Identification of unknown embedded computer, help needed.
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Fumeaux
May 16, 2019, 02:19:39 PM
post Re: Is one of these good?
[Dual Resonant Solid State Tesla coils]
Golddustpeak
May 16, 2019, 01:50:44 PM
post Re: Is one of these good?
[Dual Resonant Solid State Tesla coils]
Uspring
May 16, 2019, 12:17:01 PM
post Re: Identification of unknown embedded computer, help needed.
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Fumeaux
May 16, 2019, 08:45:15 AM
post Re: Identification of unknown embedded computer, help needed.
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Mads Barnkob
May 15, 2019, 11:49:59 PM
post Re: Identification of unknown embedded computer, help needed.
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Hydron
May 15, 2019, 10:51:33 PM
post Identification of unknown embedded computer, help needed.
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Mads Barnkob
May 15, 2019, 09:35:41 PM

Sitemap 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30