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Ok one more test you can run… The AUDIO HAT… and the RF board uses “WIRE” (not “WIRE1” or “WIRE2”)… so you could build the control portion of the RF board and try that to make sure

Thanks Jack and Bill, Yesterday, I successfully ran the ASCII code. Today, I built the Front Panel board and connected it. Success on Wire1. I2C device found at address 0x20: Front panel MCP23017 for

By the way… most people don’t know this… but if you want more controls… switches and encoders on your radio to work with and program into software, you can add up to 4 front panel boards with

Here is a picture of one of my dual encoders with knobs I made on my 3D printer: Dr. William J. Schmidt - K9HZ J62K(J68HZ) 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal

Ah, Thanks Bill.

You probably ordered single encoder boards first time, which look like: And double encoder boards the second time… which look like this: It has an extra row of pins on top to connect the second

Yeah you’ve got to build that front panel board anyway at some point… so give it a try and see if the test program can find that I2C device. Remember that the teensy has THREE I2C busses and we

Hi Bill, In the boards that I have received, I noticed that there are 2 different encoder boards. In my first order I received the skinnier board labeled 3428224AP11-230315. In a recent order I

John: I would simply plug in the USB connector on the new Teensy, before you even solder pins on it, and run the ASCII Table example program. I use this program (Example-->Communications-->ASCIITable)

Thanks Bill, I appreciate your help. I've had a lot of years and experience building electronic gadgets but has really perplexed me. I've been through 2 sets of Teensys, adapter boards, and audio

The point is good that the half-voltage reference should not have noise applied.? But, for the audio range we work with, this is taken care of by proper capacitors.? It is an AC problem, so the VR

Cool! Dr. William J. Schmidt - K9HZ J62K(J68HZ) 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ VP2EHZ Owner - Operator Big Signal Ranch – K9ZC Staunton, Illinois Owner – Operator Villa Grand Piton –

You probably know this but there have been several papers written on the weak signal performance of A/D and D/A converters being a function of the quality of the voltage reference quality. Noise at

I can drop a handfull at your spot. I will look up and post my spots also Tim

Terrance, I believe you are correct, it is straightforward. ? The I16 version does the tough part and the I32 to F32 conversion works just like the 2-channel version. ? The trick is that I2S does

John… Two options. If you programmed the teensy separated from the MAIN board and ran the teensy + hat off the just the USB cable powering the teensy thru the computer… and it doesn’t see the

Still no I2C device found :( I ohmed out all the connections between the stacked header pins through the Teensy and to the Teensy Audio adapter. I found some intermittent connection issues, which I

Ok well I’ll be selling boards and kits in spot #2607 and I can put up a sign to direct them to your booth for those cables if you want… Dr. William J. Schmidt - K9HZ J62K(J68HZ) 8P6HK ZF2HZ

I've thought several times about creating a quad I2S object for the OpenAudio library.? At a glance it doesn't look that difficult.? Then I think if it was that easy, someone would have done it, so

Yes I will have 2 flea market spots in the new area, paved near where the EMC truck usually parks Tim