diff --git a/draft/overlay/4tronix-motor-shim.md b/draft/overlay/4tronix-motor-shim.md new file mode 100644 index 0000000..a726898 --- /dev/null +++ b/draft/overlay/4tronix-motor-shim.md @@ -0,0 +1,33 @@ + +#Pi Zero Motor Shim + +The PZM shim gives you the simplest possible motor driver that can be fitted directly to the header of a Pi Zero (or other 40-pin model of Pi). Headers are included to use if required so that it is a plug-in device rather than soldered directly if preferred. \ No newline at end of file diff --git a/draft/overlay/4tronix-picon-zero.md b/draft/overlay/4tronix-picon-zero.md new file mode 100644 index 0000000..0b93ac2 --- /dev/null +++ b/draft/overlay/4tronix-picon-zero.md @@ -0,0 +1,43 @@ + +#Picon Zero + +The Picon Zero is an add-on PCB for the Raspberry Pi that is physically the same size as a Raspberry Pi Zero and so is ideal as a pseudo-Hat (pHat) for the Pi Zero. However, it can of course be used on any Raspberry Pi with a 40-pin GPIO connector. + +As well as 2 full H-Bridge motor drivers, the Picon Zero has a number of Input and Output pins that can be configured in a variety of ways, allowing you to easily add analog inputs or neopixel outputs to your Raspberry Pi without any complicated software and kernel specific drivers. It also provides an interface for an HC-SR04 ultrasonic distance sensor and opens up 5 GPIO pins from the Raspberry Pi for you to use as you see fit. diff --git a/draft/overlay/4tronix-pistep2d.md b/draft/overlay/4tronix-pistep2d.md new file mode 100644 index 0000000..de2f363 --- /dev/null +++ b/draft/overlay/4tronix-pistep2d.md @@ -0,0 +1,55 @@ + +# PiStep2 Dual + +Drive 2 uni-polar stepper motors using a single control board with the PiStep2 Dual. + +* Uses a ULN2803 Darlington driver chip to drive the motors +* Ideal for use with 28BYJ48 stepper motors +* Supported in Scratch GPIO as well as in Python + diff --git a/draft/overlay/4tronix-pistep2q.md b/draft/overlay/4tronix-pistep2q.md new file mode 100644 index 0000000..a9a50e4 --- /dev/null +++ b/draft/overlay/4tronix-pistep2q.md @@ -0,0 +1,78 @@ + +# PiStep2 Quad + +Drive 4 uni-polar stepper motors using a single control board with the PiStep2 Quad. + +* Uses ULN2803 Darlington driver chips to drive the motors +* Ideal for use with 28BYJ48 stepper motors +* Supported in Scratch GPIO as well as in Python diff --git a/draft/overlay/4tronix-pistop.md b/draft/overlay/4tronix-pistop.md new file mode 100644 index 0000000..24df890 --- /dev/null +++ b/draft/overlay/4tronix-pistop.md @@ -0,0 +1,136 @@ + +#Pi Stop Traffic Lights + +The PiStop is placed vertically into the GPIO connectors and can be fitted into several positions in the board. It can be fitted into 26-pin headers as well as 40-pin headers. It only uses 3 GPIO pins plus ground, but you can fit multiple PiStops into one header, although not all positions are possible simultaneously as some pins are shared across the options. \ No newline at end of file diff --git a/draft/overlay/4tronix-robohat.md b/draft/overlay/4tronix-robohat.md new file mode 100644 index 0000000..2989235 --- /dev/null +++ b/draft/overlay/4tronix-robohat.md @@ -0,0 +1,80 @@ + +#RoboHat +The RoboHat is a complete robot controller for small robots. It has 2 full H-bridges using DRV8833 for up to 1.5A per channel, a 5V switch-mode regulator to generate the 5V for the Raspberry Pi, 6 bufferened inputs that can accept 2.5V to 5.5V and convert to 3.3V and 4 outputs driven up to 5V. All the I/O is via GVS (Ground, Volts, Signal) 3-pin terminals so it is easy to plug in 3-pin sensors or small servos directly. There is also a connector plug in an HC-SR04 ultrasonic distance sensor with the necessary circuitry to read the value using a single GPIO pin.