Gareth gyaresu

Raspberry Pi Zero OTG Mode

Simple guide for setting up OTG modes on the Raspberry Pi Zero - By Andrew Mulholland (gbaman).

The Raspberry Pi Zero (and model A and A+) support USB On The Go, given the processor is connected directly to the USB port, unlike on the B, B+ or Pi 2 B, which goes via a USB hub.
Because of this, if setup to, the Pi can act as a USB slave instead, providing virtual serial (a terminal), virtual ethernet, virtual mass storage device (pendrive) or even other virtual devices like HID, MIDI, or act as a virtual webcam!
It is important to note that, although the model A and A+ can support being a USB slave, they are missing the ID pin (is tied to ground internally) so are unable to dynamically switch between USB master/slave mode. As such, they default to USB master mode. There is no easy way to change this right now.
It is also important to note, that a USB to UART serial adapter is not needed for any of these guides, as may be documented elsewhere across the int

	"""
	Automatically downloading Excel file from a form.

	Initially because accessing __doPostBack function was too hard to script in Python.

	Software installed using conda and homebrew.
	- selenium from conda
	- geckodriver from homebrew
	"""
	import os

	from rflib import *
	import time

	d = RfCat()

	def init(d):
	d.setFreq(433955000)
	d.setMdmModulation(MOD_ASK_OOK)

	def run():

	λ sudo port install py27-pyusb
	Password:
	---> Computing dependencies for py27-pyusb
	---> Fetching archive for py27-pyusb
	---> Attempting to fetch py27-pyusb-1.0.0_0.darwin_16.x86_64.tbz2 from https://packages.macports.org/py27-pyusb
	---> Attempting to fetch py27-pyusb-1.0.0_0.darwin_16.x86_64.tbz2 from http://sea.us.packages.macports.org/macports/packages/py27-pyusb
	---> Attempting to fetch py27-pyusb-1.0.0_0.darwin_16.x86_64.tbz2 from http://mse.uk.packages.macports.org/sites/packages.macports.org/py27-pyusb
	---> Fetching distfiles for py27-pyusb
	---> Verifying checksums for py27-pyusb
	Error: Checksum (rmd160) mismatch for pyusb-1.0.0.tar.gz

	$ 83 32 0A 00 E6 18 46 70 -> ?
	$ 83 33 0A 80 01 70 40 12 -> ?
	$ 83 33 0B 00 73 E6 25 0D -> ?
	$ 83 33 0B 80 EF 25 E0 24 -> ?
	$ 83 32 0C 00 60 A8 40 B8 -> ?
	$ 83 33 0C 80 80 D2 AF 1A -> ?
	$ 83 33 0D 00 22 EF 12 03 -> ?
	$ 83 33 0D 80 10 67 78 58 -> ?
	$ 83 32 0E 00 00 F5 83 E4 -> ?
	$ 83 33 0E 80 03 48 EE F0 -> ?

	#!/bin/bash

	cat $1 \| grep IRA >> $1_positions.csv
	sed -i -e 's/^.\+sat:/sat:/' -e 's/\( RAI\:.\+\)\\|\(sat:\)\\|\(beam:\)\\|\(pos=(\)\\|\()\)\\|\(alt=\)\\|\(+\)//g' -e 's%/%;%' -e 's/ /;/g' -e '/^00;00/d' -e '1 i\satellite;beam;latitude;longitude;altitude' $1_positions.csv
	awk -F ';' '($5<=100){print}' $1_positions.csv >> $1_positions_spotbeams.csv
	awk -F ';' '($5>100){print}' $1_positions.csv >> $1_positions_satellites.csv

	YardStick One:

	In [19]: print(conf)
	00000000 (62) RadioConfig: RadioConfig
	00000000 (01) sync1: 0x000000ee (238)
	00000001 (01) sync0: 0x000000ee (238)
	00000002 (01) pktlen: 0x0000003d (61)
	00000003 (01) pktctrl1: 0x00000001 (1)
	00000004 (01) pktctrl0: 0x00000005 (5)
	00000005 (01) addr: 0x000000db (219)

	checking for bzero... yes
	checking for clearenv... no
	checking for copyfile... yes
	checking for fgetln... yes
	checking for flock... yes
	checking for fls... yes
	checking for kqueue... yes
	checking for lockf... yes
	checking for memset... yes
	checking for posix_spawn... yes