== EasyMini
+ .EasyMini Board
image::easymini-top.jpg[width="5.5in"]
EasyMini is built on a 0.8 inch by 1½ inch circuit board. It's
- designed to fit in a 24mm coupler tube. The connectors and
- screw terminals match TeleMini v2.0, so you can easily swap between
- EasyMini and TeleMini.
+ designed to fit in a 24mm coupler tube.
+
+ You usually don't need to configure EasyMini at all; it's set
+ up to do dual-deployment with an event at apogee to separate
+ the airframe and deploy a drogue and another event at 250m
+ (820ft) to deploy the main. Install EasyMini in your airframe,
+ hook up a battery, igniters and a power switch and you're
+ ready to fly.
=== EasyMini Screw Terminals
- EasyMini has two sets of four screw terminals on the end of the
- board opposite the telemetry antenna. Using the picture
+ EasyMini has two sets of four screw terminals near one end of the
+ board. Using the picture
above, the top four have connections for the main pyro
circuit and an external battery and the bottom four have
connections for the apogee pyro circuit and the power
switch. Counting from the left, the connections are as follows:
+ .EasyMini Screw Terminals
[options="header",grid="all",cols="2,3,10"]
|====
|Terminal #|Terminal Name|Description
|Switch connection to positive battery terminal
|====
+ === Connecting A Battery To EasyMini
+
+ There are two possible battery connections on
+ EasyMini. You can use either method; both feed
+ through the power switch terminals.
+
+ One battery connection is the standard Altus Metrum
+ white JST plug. This mates with single-cell Lithium
+ Polymer batteries sold by Altus Metrum.
+
+ The other is a pair of screw terminals marked 'Battery
+ +' and 'Battery -'. Connect a battery from 4 to 12
+ volts to these terminals, being careful to match polarity.
+
+ === Charging Lithium Batteries
+
+ Because EasyMini allows for batteries other than the
+ standard Altus Metrum Lithium Polymer cells, it cannot
+ incorporate a battery charger circuit. Therefore, when
+ using a Litium Polymer cell, you'll need an external
+ charger. These are available from Altus Metrum, or
+ from Spark Fun.
+
=== Using a Separate Pyro Battery with EasyMini
As described above, using an external pyro battery involves
one of the igniter leads and connecting the other igniter
lead to the per-channel pyro circuit connection.
- To connect the negative pyro battery terminal to TeleMini
+ To connect the negative pyro battery terminal to EasyMini
ground, connect it to the negative external battery
connection, top terminal 4.