X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=doc%2Ftelemini-v2.0.inc;fp=doc%2Ftelemini-v2.0.inc;h=63e6db5d2bcb44e090c21ac97a2457005685a3ec;hb=adfbccfeb551c9d0315116912e7255a173fc3103;hp=0000000000000000000000000000000000000000;hpb=c5fd0eaa786a122580ba9a3ef7bfc0f2cfd8263b;p=fw%2Faltos diff --git a/doc/telemini-v2.0.inc b/doc/telemini-v2.0.inc new file mode 100644 index 00000000..63e6db5d --- /dev/null +++ b/doc/telemini-v2.0.inc @@ -0,0 +1,89 @@ +== TeleMini v2.0 + + image::telemini-v2-top.jpg[width="5.5in"] + + + TeleMini v2.0 is 0.8 inches by 1½ inches. It adds more + on-board data logging memory, a built-in USB connector and + screw terminals for the battery and power switch. The larger + board fits in a 24mm coupler. There's also a battery connector + for a LiPo battery if you want to use one of those. + + === TeleMini v2.0 Screw Terminals + + TeleMini v2.0 has two sets of four screw terminals on the end of the + board opposite the telemetry antenna. 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: + + [options="header",grid="all",cols="2,3,10"] + |==== + |Terminal #|Terminal Name|Description + |Top 1 + |Main - + |Main pyro channel connection to pyro circuit + + |Top 2 + |Main + + |Main pyro channel common connection to battery + + + |Top 3 + |Battery + + |Positive external battery terminal + + |Top 4 + |Battery - + |Negative external battery terminal + + |Bottom 1 + |Apogee - + |Apogee pyro channel connection to pyro circuit + + |Bottom 2 + |Apogee + + |Apogee pyro channel common connection to battery + + + |Bottom 3 + |Switch Output + |Switch connection to flight computer + + |Bottom 4 + |Switch Input + |Switch connection to positive battery terminal + |==== + + + === Using a Separate Pyro Battery with TeleMini v2.0 + + 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. + + To connect the negative pyro battery terminal to TeleMini + ground, connect it to the negative external battery + connection, top terminal 4. + + Connecting the positive battery terminal to the pyro + charges must be done separate from TeleMini v2.0, 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 (top + terminal 1 for the Main charge, bottom terminal 1 for the + Apogee charge). + + === Using an Active Switch with TeleMini v2.0 + + 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. Use + the negative external battery connection, top terminal 4 for + ground. + + The positive battery terminal is available on bottom + terminal 4, the positive flight computer input is on the + bottom terminal 3.