blob: 4383179d852ff01fbfa4f58cb2519ba8a0332eb1 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
# TeleMini #
TeleMini version 2.0 is a small, baro-only recording dual-deploy
altimeter for model rocketry with integrated telemetry link. The board
form factor and features are identical to [EasyMini](../EasyMini/), with the
addition of radio telemetry and direction finding. TeleMini is an excellent
choice for mid-power and smaller high-power rockets, and can also be a
cost-effective solution for booster recovery in multi-stage projects, etc.
For the latest TeleMini firmware and related ground station software, please
visit the [AltOS](../AltOS) page on this site.
These are photos of an early prototype version:
<a href="v2.0/telemini-top.jpg"> <img src="v2.0/telemini-top-thumb.jpg"></a>
<a href="v2.0/telemini-parts.jpg"> <img src="v2.0/telemini-parts-thumb.jpg"></a>
## Features ##
### User View ###
* Recording altimeter for model rocketry
* Supports dual deployment (can fire 2 ejection charges)
* 70cm ham-band transceiver for telemetry downlink
* Barometric pressure sensor good to 100k' feet MSL
* Designed to use any battery from 3.7 - 12V
* Screw terminals for pyro connectors, switch and external battery
* Built-in USB connector for configuration and data download
* 1.5 x 0.8 inch board designed to fit inside 24mm airframe coupler tube
### Developer View ###
* Hardware Features
* [TI CC1111F32](http://focus.ti.com/docs/prod/folders/print/cc1111f32.html) Low Power RF System-on-Chip
* Sub-1Ghz transceiver
* 8051 MCU
* 32k Flash
* 4k RAM
* USB 2.0
* 6 12-bit analog inputs (11 bits with single-ended sensors)
* 2 channels of serial I/O
* digital I/O
* [Measurement Specialties MS5607](http://www.meas-spec.com/product/pressure/MS5607-02BA03.aspx) pressure sensor
* 1MB SPI flash
* Software Features
* Written mostly in C with some 8051 assembler
* Runs from on-chip flash, uses on-chip RAM, stores flight data to
on-board flash memory
* Tools Used
* [gEDA](http://www.gpleda.org/) for schematic capture and PCB layout
* [SDCC](http://sdcc.sourceforge.net/) compiler and source debugger
* Licenses
* The hardware is licensed under the [TAPR](http://www.tapr.org) [Open Hardware License](http://www.tapr.org/ohl.html)
* The software is licensed [GPL version 2](http://www.gnu.org/licenses/old-licenses/gpl-2.0.html)
## Artifacts ##
There is a single manual for TeleMini and all other Altus Metrum products,
which is available in [html](../AltOS/doc/altusmetrum.html) and
[pdf](../AltOS/doc/altusmetrum.pdf) formats.
An outline of the board with drill hole locations is available in
[pdf](../Documents/easymini-outline.pdf) format.
The hardware design files can be found on [git.gag.com](http://git.gag.com)
in the project [hw/telemini](http://git.gag.com/?p=hw/telemini;a=summary).
## [History of TeleMini](history) ##
## Future Plans ##
Our current prototypes mostly work, but there are a couple issues yet to
resolve. We hope to complete this design and put TeleMini v2.0 into production
sometime in mid-2014.
|
