sbfreddie

Thanks!

Eddie: I am only interested in the AS9833 driver, nothing else. Regards, Ed

Eddie: Any chance you can show your complete project as I have an AD9833 board and was planning on using it for the same type of project? Regards, Ed

Ryan: Most people over the last 50 yrs I have seen use a .1 uF ceramic and something like 5->100uF Electrolytic (Tantalum) right next to every IC on their boards. Now some people only use the .1uF ceramic, which works well for high speed...

I have probably built somewhere on the order of 30-40 projects, all with either a T4.0 or a T4.1 as the heart of the system, mostly purchased directly from PJRC in multiple batches over the years. I acknowledge that "always" and "never" are...

General: This circuit was specifically designed to perform 2 functions: Remove any noise from a switching Power supply (DC to DC Converter). Protect from large voltage transients, such as start up problems of DC to DC converters, or high...

General: Answers to your questions: D1 is a Transzorb and has a voltage rating similar to a Zener diode, except it is super fast, will clamp any over voltage in about 1 nanosecond. L1 is an inductor, which is part of the Pi filter (Or low...

General: This circuit will protect your Teensy from just about anything the outside world can throw at it. It was originally designed to protect military circuits from EMP developed from Nuclear weapons. I have been using it on sensitive...

Pfeffer: You are aware I hope that Ethernet wires (cat5 and cat6) are controlled impedance wires (twisted pair). You should not use ordinary wires and connectors for Ethernet cabling. Regards, Ed

Sorry, I know,mostly talking to myself 😀 i now have the 16 bit bus display, connected to T41, it is on left, the BuyDisplay one on right (8 bit), color band 565 vs 888 on both running 24 bit running my clip… test 16 bit color shows still some...

Thanks guys! I will get to this when I finish remodeling my bathroom. Ed

Here is the code in setup: /// I'm guessing most copies of this display are using external PWM /// backlight control instead of the internal RA8876 PWM. /// Connect a Teensy pin to pin 14 on the display. /// Can use analogWrite() but...

I am still having problems centering both horizontally and vertically. What library are you using? Perhaps I am using a very old or out of date library. Regards, Ed

Kurt: Close, but no cigar. This is a button class that creates touch buttons. It should look like this:

Kurt: I am using Arial 16, the rotation is like your picture accept rotated 180 degrees. When the touch screen is touched, it displays a menu with 6 boxes spaced equidistant in two rows (2 rows of 3 rectangles). In each rectangle this is the...

Kurt: Yes, I have been watching the discussion going on in that thread, however I have not seen any mention of changes to the old existing code for SPI, this problem is very specific because it only applies to the size of characters using ILI9341...

Kurt: Sorry for not being more specific. I am using the RA8876 7 inch display using the only library I know of for that part: "name": "Ra8876LiteTeensy", "frameworks": "Arduino", "platforms": "Teensy 3.6 - T4", "keywords"...

Kurt: I tried using the getTextBounds() sub, but it does not work correctly on the RA8276 7" display. Regards, Ed

Be aware! The white button on the Teensy is not a restart or reset button, it merely puts the Teensy into program mode. There is no reset button on any Teensy currently shipping. Regards, Ed

My mistake, I thought he was using the Teensy Audio Adapter.

Make sure you are using a diff-amp, as the headphone output is not referenced to the Ground pin, but a floating simulated ground.

Tomas: Here is another test for sensitivity: Setup a large subwoofer speaker, or a large guitar amp speaker, or any amplified music device with large speakers close by with the volume cranked up and playing a serious baseline, and see what you...

Riban: Agreed! Regards, Ed

Tomas: Aluminum foil will not shield anything from a magnetic field. What you need for magnetic shielding is mu-metal. It comes as Conetic, and Netic. One shields sensitive circuits, the other shields strong magnetic field emitters. EMF can...