Custom Macro Mechanical Keypad
STM32-based Custom Gaming Keypad With RGB (Originally Made for Osu!)
3D Printed LED Mood Lamp
Raspberry Pi NOAA and Meteor-M 2 Receiver
This is the correct behavior of the ST-Link, it does not show up as a serial com port. Install the drivers, then in the Arduino IDE set the upload methold under tools to ST-Link.
If you're getting an error in the Arduino IDE that says "exec: "/bin/arm-none-eabi-g++": file does not exist" then you need to install the Arduino SAM boards (Cortex-M3) from the list of available boards in Tools \ Boardmanager. This will install the arm-none-eabi-g++ toolchain required for STM32 in Arduino.
This was a great kit, seems to work well so far. The ECG works much better when connected via option 2 (across the chest), much cleaner signal for sure.The signal I receive from the pulse sensor module is all over the place, finger position seems to have a big impact on the output, interesting to experiment with though.The
Lot's of neat bits in this box! I enjoyed the soldering kits and the ATtiny stuff is fun to tinker with. It took me a bit to figure out how to program the CJMCU on Windows 10. For anyone wondering it is normal behavior for Digispark devices to connect via USB then disconnect about 5 seconds later. This makes the driver installation a bit tricky. Make sure you run DPinst64.exe to install the drivers. If you load the 32 bit drivers by mistake you'll have to completely remove them. See reply #8 at the link below.https://digistump.com/board/index.php?topic=2479.0
Great box! I Just finished taking my tracker for a drive in my car and it worked great. I had no idea it could be so easy to connect flash storage to an Arduino.For indoor testing I connected an active external GPS antenna directly to the module using an SMA to IPX adapter. With the antenna placed near a window it was able to lock on pretty fast.I'm going to attempt to make a GPS clock that utilizes the 1PPS output on this module next.
Thanks, had the exact same issue and this did the trick!
The LED on the GPS unit is solid red until it locks on to a signal. Once the unit has a fix it will be flashing red. If you are using the unit indoors it may have trouble getting a good signal. Check the serial monitor to see if you are getting any output from the module and try moving it near a window or outdoors. Connecting an external antenna helps quite a bit too.
I had a lot of fun putting the component tester together. I managed to solder the surface mount components with a pair of tweezers and some flux.My tester seems to always want to run the calibration process when I power it on. I haven't figured out how to stop that from happening yet. I also have a hard time getting to the menu. Interesting device though!
This confused me as well, apparently 22pf capacitors can be marked either 22, or 220.http://www.elecraft.com/Apps/caps.htm