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Ok, I used my second Teensy and connected the coin cell (with holder) directly to the VBAT pin. All worked fine. SD is recognized with coin cell inserted. So I think I will remove the lower pin header on the TeensyBat base board and take a look at the pads...

No coin cell inserted: Initializing SD card...Wiring is correct and a card is present. Card type: SDHC Volume type is FAT32 Volume size (Kbytes): 15549952 Volume size (Mbytes): 15185 Mon Jul 24 09:13:18 2023 Coin cell inserted: Initializing SD card...initialization failed. Things to check...

Here are the measurements with the CR2032 inserted, diode array is type "65": Power off or no LiPo battery connected: A2 3,064V K1-4 2,845V A3 0,251V A4 0,030V Power on: A2 3,070V K1-4 3,260V A3 3,300V A4 2,072V Regards, Thorsten

Good morning together, the Teensys I have here are from two different suppliers and I don't think tey are from the same batch. Both boards have a SD card socket with "invisible" pins, but one has a diode array marked with "TY" and one marked with "65". I assume the phenomenon has nothing to do...

Hi, I have a very strange phenomenon with my neewly built TeensyBat: As soon as the coin cell is populated, the SD card isn't recognized anymore (neither within the program, nor via MTP access). If I remove the coin cell, SD works fine again. I checked all my soldering for cold joints and...

Hi, has anybody tried to use a Teensy 3.1 in USB MIDI mode on a Android device (supporting OTG)? I did some experiments on a Win7 x64 PC and the Teensy works fine as a mini Midi keyboard. Then i want to try the Teensy on my tablet (XOOM, supports OTG). There are some apps supporting external...

Michael, thanks for the hint. Indeed i didn't see Paul's thread (blame on me, sorry :o ). Don't know why, but with 1.6.1 on my machine (Win7 x64, latest Java VM) the menues and dropdown texts are disappearing if i hover over them. With 1.6.2 all seems to work fine. So, yes, i have a particular...

Hi, i tried to install Teensyduino 1.2.1 on the new Arduino IDE 1.6.2. It seems, that the directory structure changed and some key files cannot be found at the expected place. I tried to set some smybolic links, but after linking to arduino.exe and arduino_debug.exe, the symbolic linking to the...