some more @balena raspberry #pi projects and #iot hub

balena raspberry pi projects

• Build a Scratch server using a Raspberry Pi and balena
• balenalabs-incubator/internetspeedtest: Log your internet download, upload and ping metrics ti influxDB, and Grafana it. Grafana all the things! (github.com)
• balenalabs-incubator/balena-prometheus-grafana (github.com)
• balenalabs-incubator/wifi-repeater: Easily create a WiFi Access Point or repeater with balenaOS (github.com)

balena iot hub

• balenaHub: an easier way to find and publish apps and projects for edge devices

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Sony Spresense microcontroller

Sony Spresense microcontroller

• Sony Makes Its Multicore Microcontroller Available to Everyone – Hackster.io
• Overview – Spresense – Sony Developer World
• CXD5602PWBMAIN1E | Sony SPRESENSE Main CPU Computer Board CXD5602PWBMAIN1E | RS Components (rs-online.com)

embedded blockchains with @algorand #algoduino

embedded blockchains with @algorand #algoduino

• Algoduino

particle.io iot kits

particle.io iot kits

• https://store.particle.io/products/iot-starter-kit

Raspberry PI I2C and SPI

Raspberry PI I2C and SPI

I2C

• https://www.balena.io/docs/learn/develop/hardware/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

• https://www.balena.io/docs/learn/develop/hardware/i2c-and-spi/#spi

dtparam=spi=on

 

Raspberry PI 3 bluetooth, serial & UART settings

Raspberry PI 3 bluetooth, serial & UART settings

• https://www.balena.io/docs/reference/OS/advanced/

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

Edutainment

why not run @RosettaAtHome on your raspberry pi to #beatthevirus

• http://boinc.bakerlab.org/rosetta/
• https://boinc.berkeley.edu/wiki/User_manual

docker quick start

• https://github.com/BOINC/boinc-client-docker
• https://hub.docker.com/r/boinc/client/

balena @RosettaAtHome raspberry pi quick start

• https://github.com/balenalabs/rosetta-at-home

and if you are using balena you could join the balena team

• https://boinc.bakerlab.org/rosetta/team_members.php?teamid=18832

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Raspberry Pi docker

Raspberry Pi docker

• https://phoenixnap.com/kb/docker-on-raspberry-pi