EasyMega provides explicit support for an external pyro
battery. All that is required is to remove the jumper
between the lipo terminal (Bottom 3) and the pyro terminal
- (Bottom 2). Then hook the negative pyro battery terminal to ground
- (Bottom 1) and the positive pyro battery to the pyro battery
- input (Bottom 2). You can then use the existing pyro screw
+ (Bottom 2). Then hook the negative pyro battery terminal to
+ ground (Bottom 1) and the switched positive pyro battery to
+ the pyro battery input (Bottom 2). Note that you must include
+ a switch between the pyro battery and the board for safety,
+ as the on-board power switch circuit only supports the primary
+ battery! You can then use the existing pyro screw
terminals to hook up all of the pyro charges.
=== Using Only One Battery With EasyMega
ground, connect it to the negative external battery
connection, top terminal 4.
- Connecting the positive battery terminal to the pyro
+ Connecting the switched positive battery terminal to the pyro
charges must be done separate from EasyMini, by soldering
- them together or using some other connector.
+ them together or using some other connector. Note that for
+ safety, you should put a switch between the pyro battery and
+ the rest of the circuit!
The other lead from each pyro charge is then inserted into
the appropriate per-pyro channel screw terminal (top
TeleMega provides explicit support for an external pyro
battery. All that is required is to remove the jumper
between the lipo terminal (Bottom 3) and the pyro terminal
- (Bottom 2). Then hook the negative pyro battery terminal to ground
- (Bottom 1) and the positive pyro battery to the pyro battery
- input (Bottom 2). You can then use the existing pyro screw
+ (Bottom 2). Then hook the negative pyro battery terminal to
+ ground (Bottom 1) and the switched positive pyro battery to
+ the pyro battery input (Bottom 2). Note that you must include
+ a switch between the pyro battery and the board for safety,
+ as the on-board power switch circuit only supports the primary
+ battery! You can then use the existing pyro screw
terminals to hook up all of the pyro charges.
=== Using Only One Battery With TeleMega
stranded, into the GND hole just above the screw terminal
strip and solder it in place.
- Connecting the positive battery terminal to the pyro
+ Connecting the switched positive battery terminal to the pyro
charges must be done separate from TeleMetrum, by soldering
- them together or using some other connector.
-
+ them together or using some other connector. Note that you
+ must include a switch in the positive lead from the pyro
+ battery for safety!
The other lead from each pyro charge is then inserted into
- 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).
=== Using an Active Switch with TeleMetrum
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.
+ computer ground, connecting the switched 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 v3 are
the two mounting holes next to the telemetry
Connecting the positive battery terminal to the pyro
charges must be done separate from TeleMini v3, by soldering
- them together or using some other connector.
+ them together or using some other connector. Note that you
+ must include a switch in the pyro battery positive lead for
+ safety!
The other lead from each pyro charge is then inserted into
the appropriate per-pyro channel screw terminal (terminal 3 for the
To use a separate pyro battery, connect the negative pyro
battery terminal to the flight computer ground terminal,
- the positive battery terminal to the igniter and the other
+ the the switched positive battery terminal to the igniter
+ and the other
igniter lead to the negative pyro terminal on the flight
computer. When the pyro channel fires, it will complete the
circuit between the negative pyro terminal and the ground
to hook this up for each flight computer will be found
in the section below for that flight computer.
+ Note that you must include a switch in the positive lead of
+ the pyro battery for safety, as the on-board power switch
+ circuit on our product only controls current flow from the
+ the primary or system battery!
+
+
=== Using a Different Kind of Battery
EasyMini