GPIO libs, misc notes

README.md

@@ -8,7 +8,24 @@ No proprietary applications, SDKs, or similar are used.
 ![Photo of Bescor MP101 motorized pan head.](img/bescor-mp101.jpg)
 
 
+# Introduction
+The Bescor MP101 is a very low cost motorized pan/tilt head.
+It ships with a wired remote.
+The software in this repo, with a custom built cable, enables
+software control of the MP101 with a Raspberry Pi or Arduino.
+
+
+# WARNING
+Doing any of the below can fry your device.
+
+
 # Development Setup
+Two different boards have been tested so far.
+One for Arduino-like setup.
+One on a Raspberry Pi.
+
+
+## Arduino
 The development setup is using a LattePanda 3. It is an Intel
 based board with an Arduino Leonardo built on board.
 
@@ -16,6 +33,31 @@ This should be similar to using other Arduino devices plugged
 into USB ports.
 
 
+GPIOs on the Arduino can be controlled thusly:
+
+* Natively.
+
+* Various libraries.
+
+
+## Raspberry Pi
+Testing on a Raspberry Pi is using a Pi 4 running
+Raspbian (Debian stable/bullseye 11).
+
+
+GPIOs on the Pi can be controlled thusly:
+
+* Natively.
+
+* pigpiod.
+https://abyz.me.uk/rpi/pigpio/
+
+* RPiGPIO.
+https://pypi.org/project/RPi.GPIO/
+
+* Various libraries.
+
+
 # Pins
 Not all cables have the same color pin out. In fact, most have different
 pinouts, so each cable should be tested.
@@ -217,9 +259,10 @@ Pinout info:
 
 
 # Status
-Early alpha. It moves in four directions, but doesn't stop or
-have regular controls yet. Just mapped out the pins to
-Arduino software.
+Minimally works with both an Arduino and a Raspberry Pi.
+Moves in four directions on both.
+Speed control under the Pi.
+No interface or API or anything like that yet.
 
 
 # Disclaimer