particle.io iot kits
particle.io iot kits
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Raspberry PI I2C and SPI
Raspberry PI I2C and SPI
I2C
"scripts": {
"preinstall": "bash deps.sh",
"start": "modprobe i2c-dev && node app.js"
}
CMD modprobe i2c-dev && python /app/demo.py
SPI
dtparam=spi=on
Raspberry PI 3 bluetooth, serial & UART settings
Raspberry PI 3 bluetooth, serial & UART settings
The BCM2837 on the Raspberry Pi3 has 2 UARTs (as did its predecessors), however to support the Bluetooth functionality the fully featured PL011 UART was moved from the header pins to the Bluetooth chip and the mini UART made available on header pins 8 & 10.
specifically
- The device /dev/ttyAMA0 previously used to access the UART now connects to Bluetooth.
- The mini UART is now available on /dev/ttyS0 but disabled by default.
- The mini UART is a secondary low throughput UART intended to be used as a console.
To enable the mini UART an entry should be added to config.txt as follows:
enable_uart=1
PI B rev 2 v PI ZERO CPUs
There is actually very little difference between the CPUs on a PI B rev 2 and on a PI ZERO
PI B rev 2
root@9a98b74:~# cat /proc/cpuinfo processor : 0 model name : ARMv6-compatible processor rev 7 (v6l) BogoMIPS : 697.95 Features : half thumb fastmult vfp edsp java tls CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xb76 CPU revision : 7 Hardware : BCM2835 Revision : 000d Serial : 000000007175d124 Model : Raspberry Pi Model B Rev 2
PI ZERO
root@743af1a:~# cat /proc/cpuinfo processor : 0 model name : ARMv6-compatible processor rev 7 (v6l) BogoMIPS : 997.08 Features : half thumb fastmult vfp edsp java tls CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xb76 CPU revision : 7 Hardware : BCM2835 Revision : 9000c1 Serial : 000000006597f274 Model : Raspberry Pi Zero W Rev 1.1
raspberry pi and webbluetooth
raspberry pi and webbluetooth
heres a great raspberry pi balena starter project that only needs ONE led and ONE resistor
- https://github.com/WebBluetoothCG/demos
- https://www.balena.io/blog/using-web-bluetooth-to-communicate-with-bluetooth-devices/
- https://www.electromaker.io/tutorial/blog/balenaos-raspberry-pi-installation
- https://www.balena.io/blog/control-your-devices-from-a-web-browser-using-bluetooth/
why not run @RosettaAtHome on your raspberry pi to #beatthevirus
why not run @RosettaAtHome on your raspberry pi to #beatthevirus
docker quick start
balena @RosettaAtHome raspberry pi quick start
and if you are using balena you could join the balena team
Raspberry Pi docker
Raspberry Pi docker
TensorFlow lite – ML for IOT
build your own mobile phone
balena engine is in fact a docker engine
balena engine is in fact a docker engine
- https://www.balena.io/docs/learn/develop/dockerfile/#dockerfile-templates
- https://www.balena.io/docs/reference/base-images/base-images/
- https://www.balena.io/docs/reference/base-images/base-images/#balena-base-images
- https://www.balena.io/docs/reference/base-images/base-images/#features-overview
balena arm containers on x86
balena base images on docker hub
balenalib image naming
<hw>-<distro>-<lang_stack>:<lang_ver>-<distro_ver>-(build|run)-<date>balena base images in github
- https://github.com/balena-io-library/base-images
- https://github.com/balena-io-library/official-images
balena qemu
balena labs
