+++ /dev/null
-== TeleMini v1.0
-
- .TeleMini v1.0 Board
- image::telemini-v1-top.jpg[width="5.5in"]
-
- TeleMini v1.0 is ½ inches by 1½ inches. It was
- designed to fit inside an 18mm air-frame tube, but using it in
- a tube that small in diameter may require some creativity in
- mounting and wiring to succeed! Since there is no
- accelerometer, TeleMini can be mounted in any convenient
- orientation. The default ¼ wave UHF wire antenna attached to
- the center of one end of the board is about 7 inches long. Two
- wires for the power switch are connected to holes in the
- middle of the board. Screw terminals for the e-matches for
- apogee and main ejection charges depart from the other end of
- the board, meaning an ideal “simple” avionics bay for TeleMini
- should have at least 9 inches of interior length.
-
- === TeleMini v1.0 Screw Terminals
-
- TeleMini v1.0 has four screw terminals on the end of the
- board opposite the telemetry antenna. Two are for the apogee
- and two are for main igniter circuits. There are also wires
- soldered to the board for the power switch. Using the
- picture above and starting from the top for the terminals
- and from the left for the power switch wires, the
- connections are as follows:
-
- .TeleMini v1.0 Screw Terminals
- [options="header",grid="all",cols="2,3,10"]
- |====
- |Terminal #|Terminal Name|Description
-
- |1
- |Apogee -
- |Apogee pyro channel connection to pyro circuit
-
- |2
- |Apogee +
- |Apogee pyro channel common connection to battery +
-
- |3
- |Main -
- |Main pyro channel connection to pyro circuit
-
- |4
- |Main +
- |Main pyro channel common connection to battery +
-
- |Left
- |Switch Output
- |Switch connection to flight computer
-
- |Right
- |Switch Input
- |Switch connection to positive battery terminal
- |====
-
- === Using a Separate Pyro Battery with TeleMini v1.0
-
- As described above, using an external pyro battery involves
- connecting the negative battery terminal to the flight
- computer ground, connecting the positive battery terminal to
- one of the igniter leads and connecting the other igniter
- lead to the per-channel pyro circuit connection. Because
- there is no solid ground connection to use on TeleMini, this
- is not recommended.
-
- The only available ground connection on TeleMini v1.0 are
- the two mounting holes next to the telemetry
- antenna. Somehow connect a small piece of wire to one of
- those holes and hook it to the negative pyro battery terminal.
-
- Connecting the positive battery terminal to the pyro
- charges must be done separate from TeleMini v1.0, by soldering
- them together or using some other connector.
-
- The other lead from each pyro charge is then inserted into
- the appropriate per-pyro channel screw terminal (terminal 3 for the
- Main charge, terminal 1 for the Apogee charge).
-
- === Using an Active Switch with TeleMini v1.0
-
- As explained above, an external active switch requires three
- connections, one to the positive battery terminal, one to
- the flight computer positive input and one to ground. Again,
- because TeleMini doesn't have any good ground connection,
- this is not recommended.
-
- The positive battery terminal is available on the Right
- power switch wire, the positive flight computer input is on
- the left power switch wire. Hook a lead to either of the
- mounting holes for a ground connection.