Re: PWB for W8BH LC Meter project
Would like to purchase the Bh LC meter board. Let me know how to purchase, etc.
73, Bud Kline, KD8RGW
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On Mar 27, 2025, at 9:45?PM, lars anderson via groups.io <larski@...> wrote:
I have one left if anyone would like it.
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Re: PWB for W8BH LC Meter project
I have one left if anyone would like it.
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Re: PWB for W8BH LC Meter project
rec'd boards friday. built mine, works fine . two have been claimed. have two more. selling for $7.50 includes postage to USA.?
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PWB for W8BH LC Meter project
Hi, I had a lot of fun building the morse tutor and am going to build the LC Meter project. I ordered some PWBs from the JLC fab. I only need 1 but minimum buy is 5 so i will have some extras. i will sell basically at cost plus postage, TBD. if anyone is interested, pls let me know here or via email directly. i just placed the order today so i won't have them in hand for probably a couple weeks.
regards lars / kn5ute
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Re: Flashing esp32 Morse tutors help wanted
It looks like the change in version 2 needed this in the callback registration for a successful compile.
esp_now_register_recv_cb(esp_now_recv_cb_t(onDataRecv)).
I don't have 2 systems up so I don't know if it works as designed. 73 Ray AE5HN
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Re: Flashing esp32 Morse tutors help wanted
Hi. If your problem was with ESP_NOW.h I fixed it by reverting to a version 1 copy. 73 Ray ae5hn
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Re: Flashing esp32 Morse tutors help wanted
Rather than C++ changing, it is more likely that a newer ExpressIf ESP-32 plugin or an older one has introduced compatibility issues with your IDE/C++ compiler version. I am using the esp32 board package 2.0.11 for what it is worth.
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Being in the Chicagoland area, I can't help you with an eyeball visit. However, I just built the MorseTutor project with the Arduino 1.8.19 IDE with only a few warnings about "ISO C++ forbids converting a string constant to 'char*", which didn't prevent successful compilation and linking.?When I use the Arduino IDE to build projects, I use 1.8.19 as I haven't been impressed with the 2.x version to date. I also use Platform.io and its plugin for CLion (from JetBrains) for more complex projects.
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If you post a couple of representative examples of the errors you're getting, that may provide a clue to the cause of your problem.
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When I built these a couple of years ago I ran into one or two (eBay) displays which had pins in a different order than standard- it was OK for wired bread-boarding but wouldn't work with Bruce's PCB.
I bought these for the current build, but haven't been able to test them due to my inability to program my mcu. ??
2pcs 2.8" SPI TFT LCD Display Touch Panel ILI9341 240x320 TFT LCD Touch Screen Shield 5V/3.3V STM32 Display Module SPI Serial with Touch Pen
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'73 Robert ad6xj
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Re: Flashing esp32 Morse tutors help wanted
I still can not get my esp32-wroom 38 pin boards to accept Morse Tutor through Arduino ide. I tried returning to an older version (only one) from 2.4.3 (?) to 2.1.8 (?) [from memory, likely off a bit].
Does, or can, anyone help with ideas or solutions or live in LA/ Orange County, CA area that could meet up? My boards are good, I can get other programs to flash/ upload.
Thank you all again,
Robert AD6XJ
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Sure thing. The kit can be assembled by a beginner if they take their time and follow Bruce's directions and test at each stage.
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We see three common errors during assembly and they are:
- Solder not flowing down the pin to the solder pad
- Misalignment of pins on the screen when inserting
- Insertion of ESP32 module backwards
Sometimes the solder lands up on the pin of the component but does not flow down the pin to the solder pad on the boards - a few times we've needed closeup photos to determine this.
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Pins get misaligned on the display board, such that the right-hand end (with 4 pins) gets seated properly but the left hand end has one pin hanging out in the open off the female header. Applying power to the board and display results in a failure of the display in cases like this as power gets applied where it does not belong and only the backlight remains working.
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The ESP32 can be inserted backwards and it will result in a failure of the ESP processor and therefore the board itself. Once it resulted in an unexpected spontaneous deconstruction of one of the SMD components on the board and a release of the magic smoke, but most often it does not.
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73,
..Vince
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I'd like to hear the ideas too if you don't mind.? Was thinking about ordering but don't want to get in the same predicament?
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Hi Tom,
I'll email you directly with some ideas.
73 de VE6LK,
.Vince
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Built the ESP 32 version, the display only had the back light, lit.? Ordered a second kit, simply because I couldn't find the correct display.? KMRTM32032-spi.? The display from the 2nd?kit worked in the 1st?kit, indicating the 1st?display
was bad out of the box.? Tried ordering one from Amazon with similar specs.? It also failed in both devices.? My question is where can you find the correct display or a 100% compatible one?
Tnx,
Tom KT4XN
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Flashing esp32 Morse tutors help wanted
I built about a dozen Morse tutors 2 years ago and was successful flashing/programming them, once I bought a newer laptop.
Now I'm trying to make some more and am having compiling errors in Arduino IDE. Has C++ changed so much in 2 years that the "old" code won't work? Would anyone in the group be willing to talk me through how to fix the problems? The list is pretty big and I've tried researching each online, but I haven't enough programming knowledge to understand what needs to be done.
I just programmed several esp32 boards with the kv4p-ht android radio project using their online programming tool. Does such a tool exist for the w8bh morse tutor?
Thanks in advance for ANY help,
Robert AD6XJ
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Some Morse Tutors are susceptible to electrical?noise on the paddle input lines, resulting in erroneous dits and dahs during sending practice.?
To fix the issue, install bypass capacitors?from each paddle input to ground.
Suggested mod:??
Thank you to Vince?VE6LK?and others who have brought this issue to my attention.
Bruce.
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Bruce, thanks for the NTP clock.
I just want to thank Bruce for designing the NTP clock, and for providing such an excellent write up. I recently built one using a Cheap Yellow Display, with code tweaked by Mitch W4OA (Thanks Mitch). I’m not sure if it’s possible, but I might try and replace the UTC time with a second local time, as I live in the US but have family in the UK.
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NTP Clock on the ESP32 cYd (cheap Yellow display)
I have converted Bruce's NTP Clock to the ESP32 cYd module.?
Below is a picture of my original build using Bruce's pcb and the cYd, not yet in a case. The cYd is available from CN for ~$15. A copy of the code is attached.
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GPS Clock on the cYd (cheap Yellow display) module
I? have converted Bruce's design of a GPS Clock from a STM32 processor to the ESP32 2.8 inch screen cYd cheap yellow display. See www.w8bh.net https://github.com/bhall66/GPS-clock for Bruce's original design. Bruce does a fantastic job of explaining his design and code, step by step. Bruce's design has three screens, you switch screens by touch. Even though I am NOT a programmer, I somehow managed to convert Bruce's STM32 code to the cYd. But, I am stuck trying to get touch to work on the cYd. If anyone is willing to help me get the touch working, I will be happy to send them my code. The picture is of the first screen. The cYd is usually around ~$15 shipped from CN. I am using a ~$5 gps module, also from CN. Let me know if you can give me any pointers to get touch working!
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Re: SD Reader Difficulty (MorseTutor, ESP32 version)
thanks both for the feedback.
Following the guide and the guidance I posted, and without 'hacking' the code, a few units I have around here worked. <shrug>
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Re: SD Reader Difficulty (MorseTutor, ESP32 version)
Adjusting the line of code (hack) worked for me, straight up....73
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-------- Original message -------- From: Bud Kline <budkline73@...> Date: 7/4/24 9:15 AM (GMT-06:00) Subject: Re: [w8bhMorseTutor] SD Reader Difficulty (MorseTutor, ESP32 version)
Vince,
Hate to differ with you, but despite all your suggestions, the solution to the SD card read failure is, as Bruce suggests, a coding issue. Tinkering with the code line values in Bruce’s hack, results in a well-performing Tutor.
Bud, KD8RGW On Thu, Jul 4, 2024 at 9:42?AM Vince d'Eon VE6LK/AI7LK via <vincedeon= [email protected]> wrote: Secrets to getting the card to work.
First, review page 9 of the User Guide (Part 10) found here
Then,
1. Ensure you are formatting the card in FAT, not FAT-32, not ex-FAT ... just FAT.
?? (if you see the first letter truncated on the filename, it's a good indication the volume format is incorrect)
2. Ensure your filenames are following the MS-DOS 8.3 filename standard and without spaces in the filename.
3. Ensure your files are plain text files when they are saved.
4. Most importantly, insert the card into reader and then turn on the power to the Tutor. The display does not support hot plugging the memory card.
If you build your card on other operating systems like MACOS, you may see a structure that looks like this where one filename has a leading underscore "_" character:
_TEST.TXT
TEST.TXT
in which case you select the lower of the two files.
73,
..Vince
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Bruce Hall
Mitch W4OA