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Ah, that's good to know. That may have been the issue I was having of the Teensy not seeing WIRE on the Audio Hat. My stacked header pins were made with that thin metal. I have some new ones on order.

Tom I think this has been mentioned, some of the import headers have pins that a not the right dimension, the pins should be almost square. I went thru several Teensy's also before discovering the

I put together the BPF board, only three bands, powered up and had no connection between the teensy and computer. Disconnected the board and had connection with computer. Replaced teensy, now on fifth

Yes. You simply daisy-chain another set of front panel boards on the cable from the MAIN board. The additional front panel board sets must have a unique address (different from the one you currently

So you simply daisy chain them to the Main board on the Front Panel ribbon cable?

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