Documentation and tutorials

Product descriptions

• Linux embedded modules: RoadRunner, Acqua, Aria, Arietta, Netus
• Linux embedded boards: CM3 Home, CM3 panel, CM3-M2M, Fox G20, Fox LX832, Terra
• Radio modules: Yarm
• Development kits: RoadRunner Berta D2, Acqua Berta A5

Getting started

• DevKit: Berta D2, Berta A5, Berta G25
• Boards: Arietta, CM3 Home, Yarm dev, FOX LX, Terra

Creates a bootable Linux MicroSD for your Acme board

• Bootloader: RoadRunner, Acqua, Aria, Arietta, Terra, FOX G20, Netus
• Kernel: RoadRunner,Acqua, Aria, Arietta
• Debian Rootfs: RoadRunner, Acqua, Aria, Arietta, FOX G20

Pinouts

• Acqua, Aria, Arietta, Yarm, Yarm dev, Netus, FOX G20, Terra, FOX LX
• LCD, Touch screen, PWM, ADC, I2C, SPI

Using the SOM peripherals with Linux

• SPI bus
• I2C bus
• ADC lines
• PWM lines
• GPIO lines
• Ethernet
• Serial lines
• 1-Wire bus
• Watchdog

Download microSD images

• RoadRunner, Acqua, Aria, Arietta, Fox G20

How to design the carrier PCB to use with the Acme Systems modules

• Circuitry sections: Ethernet, TFT, USB,MicroSD, PWM,ADC, Serial, GPIO, Power supply, Long-lasting battery

Other How-tos

• How to use systemd for applications start
• Device tree compiler
• Distro upgrade from Debian Jessie 8 to Stretch 9
• Write on QuadSPI memory with SAM-BA
• Get the access to the board through: SSH, SCP, Debug port, Web
• How to format a microSD
• How to backup a Linux microSD
• Prepare the microSD for the final application
• Aria G25 wiring examples
• How to supply power to the Arietta G25
• Arietta G25 wirings
• How to read the Arietta on-board button
• Video streaming over IP
• WebCam: Time-laps video
• WIFI-2 - OEM WiFi USB module
• WiFi USB dongle
• Bluetooth: Using USB bluetooth adapters
• Using the GPRS section on Terra board
• Gadget Serial Driver on the USB device port
• Datalogic Barcode Scanner
• Power supply to the USB port on Terra board
• Using the Atmel AT24MAC402 on Acqua A5
• Interfacing the 8-channel A/D converter IC Texas ADC128S052
• Experiments with X
• XTERM-01 - 2.8 inch TFT display with resistive touch for Arietta G25
• RGB ledpanel with Arietta G25
• 16x2 alphanumeric LCD and four push-button on Arietta G25

Linux system how-tos

• Set the system date & time
• Set the keyboard configuration
• Set the speed and duplex settings of eth
• Get the IP address from DHCP manually
• Discover the IP address assigned by DHCP
• Disable the system logs
• Deleting the cache of package files to save space
• USB memories automount
• Creating a uSD image from a file tree
• uSD partition resize

Linux shell command pills

Check the incoming interrups: watch -n 1 -d cat /proc/interrupts

Check the Linux Kernel version: uname -r Check the Debian version: cat /etc/debian_version

Check command line used to start the Linux Kernel: cat /proc/cmdline

List the driver built in the Kernel image: cat /lib/modules/$(uname -r)/modules.builtin

Set the hostname: echo "myboardname" > /etc/hostname

Read the microSD serial number: cat /sys/class/mmc_host/mmc?/mmc?:*/serial

Check the IP address: ifconfig

Linux applications

• Network Time Servers (NTP)
• FTP server
• Create mini WiFi Webapp server
• Install Bonjour on your PC to easily discovery your Linux board
• Use pyGSM to manage SMS
• PPP over GPRS or HSPA link
• Using Minicom the serial terminal emulator
• Sample Application with Angular.js
• Remote control using Python, OSC and TouchOSC App
• How to install the MQTT Mosquitto server
• SQLite installing and test
• MySQL server installing and test
• MySQL client API in C, Python and PHP
• Access to MySQL Server using MySQL Query browser
• Video streaming with ffmpeg
• Connecting to a Remote Serial Port over TCP/IP

Hello world examples

• Python, C, C++
• NodeJS, Java, PHP, Perl
• Shell, Lua, YaBasic

Python articles

• Write a simple HTTP server in Python
• Control a blinking led via Web
• Installing Tornado
• Control a led remotely using Tornado web server
• Install web2py Web Framework
• AcmePins library
• AbLib Python library

C articles

• Install the ARM cross compiler toolchain on your Linux Ubuntu PC
• Compiling a Linux Device driver
• Running a CGI written in C

Troubleshooting

• Perl error on locales
• RTC time lost
• To many interrupts from debug port rx line
• Boot fails with the DPI interface plugged
• Swapon failed: Function not implemented
• Command: shutdown -h now doesn't work
• The pin TXD /dev/ttyS3 doesn't work
• FOX board G20 troubleshootings
• Emdebian Grip
• Serial ports input overrun
• Using an ADSL Vodafone Station apt-get doesn't work
• Detaching the ethernet cable for a while the LAN doesn't go up automatically when plugged again
• Calibrating delay loop... message after some errors on the debug port

Author: Sergio Tanzilli - tanzilli@acmesystems.it
System designer and CEO of Acme Systems srl
Web master of: https://www.acmesystems.it and http://www.tanzolab.it
Software developer on: https://github.com/tanzilli and https://github.com/acmesystemsss