TeensyMaestro

KD0RC

Hi Kuno, yes, the screen should clear first. This is starting to sound like the Teensy 4.1 board.

I will look to see if I have another display so that I can recreate your test setup today. I will let you know what I discover.

KD0RC

Hi Kuno, I found a display (I'm glad I bought a spare!) and it works with just the following connected:

VCC to 5V

GND to G

CS to pin 10

RESET to pin 8

DC/RS to pin 9

SDI(MOSI) to pin 11

SCK to pin 13

LED to 3V

SDO(MISO) to pin 12

If this is how you are connected, then I suspect a problem with the Teensy 4.1 board. Here is mine with only these connections.

You might try re-loading the HW2 version (V002.003B4) from my post above, just in case there was a problem with the firmware load.

Also, do you have SmartSDR running when you boot up the TeensyMaestro? If not, try it with SmartSDR already running.

If none of this helps, then there is most likely a problem with your Teensy 4.1 board.

Kuno

Len,

it looks like I have to get another Teensy. I also tried the latest Beta version and wired the same way you did, but without any change. Many thanks for your patience, it will take a while till I get the new Teensy.

vy 73 de DF1SD, Kuno

KD0RC

Hi Kuno, sorry that you had so much trouble. Hopefully a new Teensy board will be all you need.