A high resolution codebug?

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pigraham
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A high resolution codebug?

Post by pigraham » Thu Nov 12, 2015 9:35 am

Following from miker's experiments with a Bluno beetle and my own tinkering with a 0.96" SPI OLED I was thinking about the possible appeal of putting the two together to make a BLE capable alternative to Code Bug with 128 x 64 pixel OLED display in place of 5 x 5 LED array. Display area is similar.

The higher resolution would open all sorts of different possibilities for text and graphics.

Such a device could be programmed with Blockly (a version exists for Arduino that could be adapted for special display functions).
The Arduino ecosystem would also be available with source code editing and a world of libraries.

Parts cost should be <£20.

Does that sound interesting?

[ETA] It seems Bluno beetle lacks micro power modes so it would not be suitable for coin cell operation. There are other options for processor. DigiSpark is tiny although with less I/O and no BLE.
ESP8266 has 78uA sleep mode and WiFi. It wouldn't last long on a coin cell with WiFi on though. ~60mA average @3.3V

mikerr
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Re: A high resolution codebug?

Post by mikerr » Tue Nov 17, 2015 10:38 am

Fully open source, arduino based OLED codebug with bluetooth -I'm in !
Twitter @mikered codebug profile mikerr

pigraham
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Joined: Sat Aug 15, 2015 1:41 pm

Re: A high resolution codebug?

Post by pigraham » Tue Nov 17, 2015 1:04 pm

mikerr wrote:Fully open source, arduino based OLED codebug with bluetooth -I'm in !

Bluetooth:

http://bleduino.cc/


WiFI:

http://www.ebay.co.uk/itm/New-ESP8266-E ... HucEt6z-Rg

Image

http://www.ebay.co.uk/itm/Durable-Good- ... xyuR5TavCM


https://github.com/BlocklyDuino/BlocklyDuino/wiki


It looks like one small carrier PCB could integrate the radio/processor with display and coin cell holder.

A $9 CHIP with one of these OLED would be an interesting combo. WiFi & Bluetooth!
https://www.kickstarter.com/projects/15 ... escription

mikerr
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Re: A high resolution codebug?

Post by mikerr » Mon Nov 30, 2015 10:47 am

How about a piZero version ?

Image Image
Twitter @mikered codebug profile mikerr

pigraham
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Re: A high resolution codebug?

Post by pigraham » Sun Dec 06, 2015 10:32 am

Pi0 would be possible. I plan to hook up an OLED to one when I have some spare time.
Not idea for the badge format because to power draw. It won't last long on a CR2032 coin cell.
I think the most promising will be an ESP8266, but limited gpio so I will probably have to get a i2c version. Mine are SPI ATM.

pigraham
Posts: 65
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Re: A high resolution codebug?

Post by pigraham » Sun Dec 06, 2015 10:35 am

Here is an Onion Omega with their OLED expansion. The Omega is a very small board that runs Linkux. A carrier board with coin cell and OLED would be about the same size as Code Bug, but a bit thicker.

https://www.youtube.com/watch?v=syozwBO_kNc

pigraham
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Re: A high resolution codebug?

Post by pigraham » Wed Dec 09, 2015 5:00 pm

I hope you don't mind me thinking out loud here.

I see this eval board has 2.4" QVGA colour screen onboard and runs from 3V

Image

http://uk.farnell.com/stmicroelectronic ... DV-CRUK-LF

•STM32F429ZIT6 microcontroller in an LQFP144 package
•On board ST-LINK/V2 with selection mode switch to use the kit as a standalone
•ST-LINK/V2 (with SWD connector for programming and debugging)
•Board power supply through the USB bus or from an external 3V or 5V supply voltage
•SDRAM 64Mbits
•L3GD20, MEMS motion sensor, 3 axis digital output gyroscope
•Six LEDs
•Two pushbuttons (user and reset)
•USB OTG with micro AB connector
•Extension header for LQFP144 I/Os for a quick connection to prototyping board and an easy probing

£16

No wireless built in, but maybe the USB OTG can support WiFi or BT adaptors.

mikerr
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Re: A high resolution codebug?

Post by mikerr » Tue Jul 25, 2017 4:07 pm

Thread revival - but just ordered one of these:

Image
Image
Image

Complete ESP8266 with microusb for programming (using arduino IDE) and built in OLED ... all for £7.40 !!

Display is SSD1306


https://www.banggood.com/Wemos-Lolin-ES ... 863201603C

codebug for grownups ?
Twitter @mikered codebug profile mikerr

mikerr
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Re: A high resolution codebug?

Post by mikerr » Sat Aug 12, 2017 1:02 pm

Arrived and had plenty of fun with it:

https://github.com/mikerr/arduino-oled

Image

Arduino based programming, so should work with ardublockly-
https://ardublockly.embeddedlog.com/
Twitter @mikered codebug profile mikerr

pigraham
Posts: 65
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Re: A high resolution codebug?

Post by pigraham » Fri Sep 15, 2017 8:28 am

Those are nice. Ordered a couple at £6.73 ea

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