Equipment catalog

Archived excerpt VGA Space invaders on bluepill goran.mahovlic Thu Jun 08, 2017 7:12 pm Im trying to get working on bluepill but im fai…

Spark Logic archive simple sound player : PWM audio output, with DMA, without timer interrupt stevestrong Sun Oct 29, 2017 9:20 am I have a …

Spark Logic archive DeltaSigma PWM audio Output martinayotte Mon Jun 22, 2015 1:34 am I was looking at his thread on ESP forums, a MP3 WebRadio out…

Spark Logic archive Wireless Lux meter with STM32 rolo644u Sun Aug 14, 2016 1:52 pm Working on a lux meter to connect with Domoticz Home A…

Archived excerpt Waveform Generator (Two DAC examples) Vassilis Mon Aug 17, 2015 5:37 pm Today I received my new STM32F103VET board and…

… that USB will work. Re: I want to use 16.55 MHz for measurements The STM32 is not a signal generator , I suspect it will be difficult to make 16.55Mhz from this board, I recommend you by something like…

…w in the functionality of one of those atmega based “component testers”, a frequency/ waveform generator , maybe a precision voltage source and selection of cheap probes and you can stick an entire electon…

…ample ( ADC_SMPR_1_5, /**< 1.5 ADC cycles */) BTW if anybody is looking for a signal function generator , asearch ebay for AD9850 – These little boards are quite useful – in fact I can see another little …

… however thinking of having a play with the AD9850 at some stage to add a 0 – 40 MHz signal generator to the $10 scope. mrburnette Sun Sep 13, 2015 11:56 pm @pe1mxp Welcome to the forum. Ray Silly proj…

Spark Logic archive Sine wave generator ted Sun Jul 16, 2017 10:15 pm Hi Sine wave generator Can someone help me in programing STM32F103C8T…

Spark Logic archive [ SOLVED] VCO ted Wed Sep 05, 2018 1:32 pm Hi I am trying to make a VCO based on voltmeter and generator programs…

Archived excerpt Dual LFO with choice of waveforms using PT8211 and Blue Pill KenLaszlo Fri Nov 24, 2017 2:12 pm Hi folks Rog…

…--------------------- // Modified i2c_scanner to find, dump and update a SOR/T SOR/R Dosimeter 24C16 EEPROM (and probably related devices). // to hack in missing features. // // See // for more …

…enient. Most of smartphones use micro USB,not mini USB. 2.Leaf Maple uses BQ24010 as battery charger IC, MapleTree uses BQ24075T. BQ24075 is with Power path function.It is as same as smart phone batte…

…-30V). It is based on well known (but a bit old) MC33063 regulator. – On board Li-Po battery charger with automatic power supply selection. MCP73812 charger is used, adjusted at 70mA charging current.…

… one or two failures, including a DAC board that arrived pre-smoked, and a couple of LiPo charger pcbs that didn’t do anything much. I’ve also had over delivery of some items, and a couple “lost in…

Archived excerpt Battery charger specs..I’m confused… Kenjutsu Sat Jul 09, 2016 1:16 pm Hello everyone. I need help. I bought a univ…

Spark Logic archive USBComposite, Some help making a gaming HID … Nutsy Sun Mar 03, 2019 12:12 am Hi while I still have the opportunity to I wanted to ask a couple …

…ller <-- PS3 joystick Bus 001 Device 005: ID 0079:0006 DragonRise Inc. PC TWIN SHOCK Gamepad <-- arkade joystick Bus 001 Device 006: ID 1eaf:0024 <-- STM32 arpruss Wed Dec 20, 2017 2:17 am Sur…

…y library – the input is under 1KHz, but its imperative not to loose any impulses. – IR remote Update: After reading several positive posts i ordered a small Nextion TFT – we´ll see…. What do yo…

…otocol ? Vassilis Fri Jan 20, 2017 11:04 am I tried to read my Air-condition’s YB1F2 IR remote control to make an ON/OFF circuit that will be controlled via a GSM module. .. The full discussion …

Archived excerpt Do you recognize that Infrared Protocol ? Vassilis Fri Jan 20, 2017 11:04 am I tried to read my Air-condition’s YB1F2 IR remote control to …

…”. You either bitbang it all, or nothing at all. So if you choose to use spi on your 3d printer board on pins not supported by the stm32 hardware, you can indeed resort to bitbanging it to other pins. …

…n for stm32 MCUs, based in our core. I had a working version a few weeks ago, but no 3d printer board based in STM32 to test it with, so I embarked on designing my own board. I designed 2 versions, one…

Spark Logic archive Anyone tried to make a 3D Printer controller ? strawberrymaker Mon Sep 14, 2015 4:18 pm Just did the math and saw that it could be possible to ma…

…ectively … ver_Boards but i’d guess it is also part of the reason why ST’s reference 3d printer board comes at a premium in costs at least actually it didn’t matter too much as the different boards e.g…

…aper more documented STM32407VET??? ZGT6 has more I/O pins – very usefull for e.g. a 3D printer controller , when multiple extruders are needed. So far (on paper) I have managed to get pins mapped for 3 extr…

…w and started recording temperature values by hand from a third sensor – a “Acu-Rite weather station ”. Those values have been shifted up by 2F. The temperature outside is around 6F colder than the roo…

Spark Logic archive $ 10 O-Scope revisited ahull Sat May 09, 2015 12:56 pm Over the last few days I’ve been playing with Ray’s STM32…

…d Very Happy i guess stm32duino is really ‘going places’ , we once thought making a $ 10 o-scope is pretty ambitious viewtopic.php?t=107 now blue pill or maple mini runs 3d printers, and all that …

…a long time back, which might give some clues, see below. /*. (c) Andrew Hull - 2015 STM32-O-Scope - aka "The Pig Scope" or pigScope released under the GNU GENERAL PUBLIC LICENSE Version 2, June 199…

Spark Logic archive 4 channel polyphonic tone generator (blue pill) stevestrong Sat Nov 11, 2017 8:22 pm Hi, just for fun: (the real sound is much better t…

Spark Logic archive Voice changer racemaniac Fri Jun 10, 2016 6:09 pm As i said in the 10$-o-scope project, i borrowed some of its co…

Spark Logic archive WWVB timecode from blue pill fredbox Mon Mar 11, 2019 10:51 pm The last couple of months I have worked on a circu…

Spark Logic archive DIY ST-Link SWIM programmer for STM8S? Kenjutsu Mon Feb 29, 2016 9:26 am Hello everyone, A while back I ordered a few “STM8S103…

Archived excerpt Arduino programmable smart Watch RogerClark Sat Sep 03, 2016 11:45 pm I know several people have been attempting to build STM32 base…

…inutes, but only if lux value is changed. It uses the blue pill board, a low voltage 433Mhz transmitter and a BH1750 light sensor board. No bootloader, programming is done by STLink. When battery level c…

Spark Logic archive New HAM-radio multimode beacon pe1mxp Sun Sep 13, 2015 9:24 pm Hi all. Since a year I have a HAM-radio beacon running in the 4m am…

Spark Logic archive UT61E SD BLE logger goran.mahovlic Mon Feb 19, 2018 10:06 am Recently (few days ago) I have bought UT61E for current lo…

…st of that group. … ields.html Pito Fri Dec 07, 2018 4:52 pm FYI: The classic SdCard data logger with FIFO and FIR filter (FreeRtos9) , Win7 64b, latest uecide 10..rc3, : PS: this one below is wit…

… Sep 22, 2016 12:51 pm Among the examples of SDfat on Arduino there is one of a fast datalogger , LowLatencyLogger, but on Due it seems that it reach only 4000 samples per second. I believe that i…

…board can run off a li-po battery what comes to mind is that this is possibly a good datalogger board and there is this notion that inserting a micro sd card may literally expand storage to gigab…

… app) and ip cameras. There are some educational post about using old smartphones as datalogger for physics acceleration experiments. ahull Tue Nov 14, 2017 2:04 pm .. and of course old (ARM base…

…e main microprocessor for SD. A second, dedicated microcontroller is a more sensible datalogger . If the design requires reading, parsing, writting and such: move to an rPi. On an 328 AVR, 512 Byt…

…he codes on stm32duino and none of them seem to upload well. I have written a simple datalogger sketch that is able to log 10K samples/sec into an SD card . The pig o scope sketch says that it is…

… Hopefully the ILI9341. I will then use this as a screen / controller for my vehicle datalogger that I have already built on an Adafruit Feather M0. Here’s the thing I want to hack.. Note that th…

Spark Logic archive stm32f103c8 or esp32 for a datalogger aster Mon Jan 15, 2018 12:15 pm hello, I am working on a datalogger for suzuki/kawasaki motorbikes.…

…wer, battery operated nature of the Dragonfly will make a great remote environmental data logger . I have programmed the Dragonflys I have assembled with dfu-util using precompiled binaries provide…

…ral to 2 of those pins, or perhaps use them as analog inputs, e.g. some sort of mini data logger etc. victor_pv Thu Jul 30, 2015 1:44 pm alex wrote: Using stlink as BMP is for tidy. It very quik t…

…upload the new *.bin file -> ready. I can think on many uses for USB-Storage. I.e. a data logger that can be read just plugging an usb cable and readig as a read-only disk. There is no need to hav…

Spark Logic archive what if we make a custom programmer for STM32 using an AVR arduino? Luc_Exe Tue May 05, 2015 8:41 pm I’m sure many of you thought it before, but …

Spark Logic archive Generator ON/OFF SOLVED ted Thu Aug 09, 2018 8:36 am Hi This program has a generator and blinking LED. How to modify…

…er IC, MapleTree uses BQ24075T. BQ24075 is with Power path function.It is as same as smart phone battey charger system. 3.Leaf Maple uses LDO, MapleTree uses Buck DC-DC with 600mA output. It’s mor…

…isplay has many options and they can be implemented with a bus or completely remote ( Smartphone … ). I myself prefer, reducing wiring of sensors (or noncritical On/Off-Signaling) by using simple …

…7 4:05 pm In addition to these numeric calculations, I do wonder if anybody has done thermal imaging of F103 and F407 boards to determine if this is a real problem. Pito Sun Jul 30, 2017 11:43 am Not …

…s to order F4bluepills when they are ready for a first shot. I have now built my own reflow oven (still testing it), so I’ll be happy to reflow them too. So we have credit for the PCBs, and I have…

Spark Logic archive Reflow oven and Solder paste? RogerClark Fri Oct 16, 2015 8:20 pm Hi Guys, I’m gearing up to produce some SMD b…

…ds to ship some to people willing to assemble some. I live in the US, and have a diy reflow oven that has worked fine for me so far. I am not set for volume production though. I can ship a bunch o…

Spark Logic archive Using an STM32 to levitate /suspend tiny neodymium magnet at 12" or so… Holes Flow Mon Nov 13, 2017 1:41 am You see, suspending…

Archived excerpt [SOLVED] Photo developing machine – power issues BennehBoy Sun Jul 29, 2018 3:45 pm One of my other hobbies is photography. I still u…