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Forum Index : Microcontroller and PC projects : STM32F407 boards back in stock at a sensible price

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matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 9126

Posted: 04:54pm 05 Aug 2023

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From the usual places

For those not aware of the ArmmiteF4 port of MMbasic, this is a superb platform for any embedded application - fast, lots of I/O, support for cheap 16-bit parallel displays, etc.

Firmware
https://www.thebackshed.com/forum/ViewTopic.php?TID=13523&PID=176974#176974

Docs
https://www.thebackshed.com/forum/ViewTopic.php?TID=13542&P=4

mclout999
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Joined: 05/07/2020
Location: United States
Posts: 469

Posted: 06:14pm 05 Aug 2023

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Could someone provide a link to a LCD of the largest size that will plug directly into the header into the board. Searching On Aliexpress is so confusing to me. Thanks anyone.

Mixtel90

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Joined: 05/10/2019
Location: United Kingdom
Posts: 6798

Posted: 06:23pm 05 Aug 2023

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It sounds like a good idea at first but I'm not sure that you'd want to in reality as it would almost certainly obscure all the other connections on the board.

Mick

Zilog Inside! nascom.info for Nascom & Gemini
Preliminary MMBasic docs & my PCB designs

matherp
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Joined: 11/12/2012
Location: United Kingdom
Posts: 9126

Posted: 06:40pm 05 Aug 2023

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This is the display which perfectly fits

lizby
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Joined: 17/05/2016
Location: United States
Posts: 3150

Posted: 08:23pm 05 Aug 2023

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mclout999 said LCD of the largest size that will plug directly into the header

If size of the LCD matters more to you than being able to plug it in without an adaptor, up to 9 inches is available with an Eastrising LCD.

More options are available at Armmite F4 on FruitoftheShed

The 4-inch IPS, 800X480 LCD is a nice one (but requires an adaptor).

(I see that shipping on the F4 boards varies wildly--from $5USD to $30.)

~
Edited 2023-08-06 06:34 by lizby

PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed

okwatts
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Joined: 27/09/2022
Location: Canada
Posts: 59

Posted: 07:38pm 07 Aug 2023

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Just ordered the lcd for this as I discovered that I had 2 of these boards from some years ago that I initially installed micropython on. I have never really done anything with them so this should breathe new live into them and will allow me to try some of Geoff's example cases on. Looking forward to this.

andreas

Senior Member

Joined: 07/12/2020
Location: Germany
Posts: 207

Posted: 07:44am 10 Aug 2023

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Thank you for the tipp ;-)

I payed 11,56 € for the first order. On the picture is the price shown, when I visited the site a second time. The display is included!

-andreas

Volhout
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Joined: 05/03/2018
Location: Netherlands
Posts: 4246

Posted: 08:14am 10 Aug 2023

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Please let me know if these boards are okay. I had 2, and one would not run MMBasic through USB. It could be programmed over USB over and over, but would not run MMBasiv. Peter made a special version that used a com port as console, and it woul work over a com port.
My second board was okay. But the first one, I ended op trashing after all experiments.

PicomiteVGA PETSCII ROBOTS

Volhout
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Joined: 05/03/2018
Location: Netherlands
Posts: 4246

Posted: 09:34am 10 Aug 2023

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Since firware upgrade uses the internal oscillator in the chip, and mmbasic the crystal oscillator, I always expected the crystal the cause the problem. But could never prove it.
Anyway, too late now, the board is gone.

PicomiteVGA PETSCII ROBOTS

andreas

Senior Member

Joined: 07/12/2020
Location: Germany
Posts: 207

Posted: 12:54pm 18 Aug 2023

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The board (STM32F4VE) arrived today and works:

> option list
OPTION COLOURCODE ON
OPTION DISPLAY 50, 100
OPTION LCDPANEL ILI9341_16, RLANDSCAPE
OPTION TOUCH PB12, PC5
GUI CALIBRATE 0, 355, 205, 944, 668

> memory
Flash:
1K ( 1%) Program (2 lines)
131K (99%) Free

RAM:
0K ( 0%) 0 Variables
0K ( 0%) General
151K (100%) Free

> list
CLS
Text 100,100, "Hello, world!"

-andreas

lizby
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Joined: 17/05/2016
Location: United States
Posts: 3150

Posted: 01:18pm 18 Aug 2023

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Some F4-related links: F4 on FruitOfTheShed

PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed

okwatts
Regular Member

Joined: 27/09/2022
Location: Canada
Posts: 59

Posted: 09:24pm 24 Aug 2023

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I just received 2 lcds from aliexpress (different stores) one of which is from the store you apparently ordered from. I thought I was getting both the development board and the lcd for $22.88 CDN with shipping. It turns out that was just for the lcd. I also ordered just the LCD from ACELEX $13.42+4.53 shipping =17.95 CDN including the shipping. Apart from feeling I was deceived in the advertising by the Sincere Company Store version, the 2 LCD's are different in the connectors as shown in the photo. The one on the left from ACELEX matches my old v2.1 dev boards but the other has some significant differences in the power and gnd at the end of the connector. If I had actually got the development board I thought I was getting it would hopefully have paired with the LCD correctly.
I assume yours came as a pair and are operating nicely, but Its buyer be aware apparently.

This was noted by flip in the thread "ArmmiteF407 V5.07.01 betas - lots of new stuff"
https://www.thebackshed.com/forum/ViewTopic.php?FID=16&TID=16148 regarding newTFT and OLD-TFT.
Edited 2023-08-25 15:11 by okwatts

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