todbot

Keybase proof

I hereby claim:

• I am todbot on github.
• I am todbot (https://keybase.io/todbot) on keybase.
• I have a public key whose fingerprint is AAB5 37CE B4D8 4DC1 1571 D47E 74B1 4B82 CFFF 63C5

To claim this, I am signing this object:

todbot

bokbokbok% bossac -i -p /dev/tty.usbmodem14121
Atmel SMART device 0x10010005 found
Device       : ATSAMD21G18A
Chip ID      : 10010005
Version      : v1.1 [Arduino:XYZ] Jan 17 2017 22:26:41
Address      : 8192
Pages        : 3968
Page Size    : 64 bytes
Total Size   : 248KB
Planes       : 1

todbot

// lsusb-verbose.js
//
// Slightly fixed version of https://github.com/schakko/node-usb/blob/master/examples/lsusb/lsusb.js
// for https://github.com/tessel/node-usb
// 
// Rework by Tod E. Kurt / todbot.com
//

var usb = require('usb')

todbot

todbot@vbubuntu:~/projects/tmp$ git clone https://github.com/todbot/electron-hid-toy
todbot@vbubuntu:~/projects/tmp$ cd electron-hid-toy
todbot@vbubuntu:~/projects/tmp/electron-hid-toy$ npm install

todbot@vbubuntu-blink1dev:~/projects/tmp/electron-hid-toy$ npm run build

> electron-hid-toy@0.1.5 build /home/todbot/projects/tmp/electron-hid-toy
> build

electron-builder 19.36.0

todbot

Below are two ways to run blink1-tool to control blink(1) on a Chromebox via the command-line. To get a command-line, you need to enable developer mode on the Chromebox.

Method 1: Download pre-compiled blink1-tool for Linux

sudo mkdir -p /usr/local/bin
cd /usr/local/bin
curl -OL https://github.com/todbot/blink1/releases/download/v1.98a/blink1-tool-v1.98a-linux-x86_64.zip
sudo unzip blink1-tool*zip
sudo /usr/local/bin/blink1-tool --blink 3

todbot

Create the pattern with a custom color:

This pattern has only two lines: a color and off.
The result if played on repeat is a flashing.

echo "making pattern"
blink1-tool -m 500 --rgb ff00ff --setpattline 0
blink1-tool -m 500 --rgb 000000 --setpattline 1

Try it out, make sure to only play those two lines

The --play commands takes three args: play/stop (1/0), start position, end position.

todbot

// hidapi-enum-tst.c -- Demonstrate enumerating
//
// Build with:  (assumes you have checked out 'hidapi' into a side directory)
// Mac:
//  gcc -I ../hidapi/hidapi ../hidapi/mac/hid.c -framework IOKit -framework CoreFoundation hidapi-enum-tst.c -o hidapi-enum-tst 
// Linux (hidraw):
//  gcc -I ../hidapi/hidapi ../hidapi/linux/hid.c -ludev hidapi-enum-tst.c -o hidapi-enum-tst
// Linux (libusb):
// gcc -I ../hidapi/hidapi -I /usr/include/libusb-1.0 ../hidapi/libusb/hid.c -lpthread -lusb-1.0 hidapi-enum-tst.c -o hidapi-enum-tst
//

todbot

Programming a Tomu EFM32HG with ST-Link V2 and OpenOCD

Here's one way to program a Tomu (https://tomu.im/) or EFM32 chip using a cheap $8 ST-Link V2 programmer

1. Install OpenOCD - http://openocd.org/

   e.g. on Mac OS X: brew install openocd

2. Create a file called "~/openocd-stlinkv2-efm32.cfg" that contains:

todbot

# What is our setup
pi@raspberrypi:~ $ cat /etc/debian_version
9.4

pi@raspberrypi:~ $ lsb_release --all
No LSB modules are available.
Distributor ID:	Raspbian
Description:	Raspbian GNU/Linux 9.4 (stretch)
Release:	9.4
Codename:	stretch

todbot

 /* Basic Raw HID Example
   Teensy can send/receive 64 byte packets with a
   dedicated program running on a PC or Mac.

   You must select Raw HID from the "Tools > USB Type" menu

   Optional: LEDs should be connected to pins 0-7,
   and analog signals to the analog inputs.

   This example code is in the public domain.