TeleMetrum is a 1 inch by 2¾ inch circuit board. It was designed to
fit inside coupler for 29mm air-frame tubing, but using it in a tube that
TeleMetrum is a 1 inch by 2¾ inch circuit board. It was designed to
fit inside coupler for 29mm air-frame tubing, but using it in a tube that
bay for TeleMetrum should have at least 10 inches of interior length.
There are two generations of the TeleMetrum design. The
bay for TeleMetrum should have at least 10 inches of interior length.
There are two generations of the TeleMetrum design. The
circuits. Using the picture above and starting from the top,
the terminals are as follows:
circuits. Using the picture above and starting from the top,
the terminals are as follows:
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[options="header",grid="all",cols="2,3,10"]
|Terminal #|Terminal Name|Description
|1 |Switch Output |Switch connection to flight computer
|2 |Switch Input |Switch connection to positive battery terminal
|Terminal #|Terminal Name|Description
|1 |Switch Output |Switch connection to flight computer
|2 |Switch Input |Switch connection to positive battery terminal
stranded, into the GND hole just above the screw terminal
strip and solder it in place.
stranded, into the GND hole just above the screw terminal
strip and solder it in place.
- the appropriate per-pyro channel screw terminal (terminal 4 for the
- Main charge, terminal 6 for the Apogee charge).
+ the appropriate per-pyro channel screw terminal (terminal 4
+ for the Main charge, terminal 6 for the Apogee charge).