Tracking Antenna Status & Mechanical/Electrical Components
- Arjun Mandair
- Anthony Luo
- Hardy Yu
- Michael Botros
Mechanical Tasks & Status
Editor | Task | Deadline | Progress |
|---|---|---|---|
@Arjun Mandair | Yaw-Rotation Prototype | 2-3 Weeks | Complete |
@Arjun Mandair | CAD Review | Jan 22, 2024 | Complete |
@Arjun Mandair | Minor CAD Revisions | Jan 24, 2024 | In Progress |
@Arjun Mandair | Yaw-and-Pitch-Rotation Prototype | Mar 1, 2024 | NA |
@Arjun Mandair | RC Tower | Mar 1, 2024 | NA |
@Arjun Mandair | Video Tower | Mar 1, 2024 | NA |
Components
control system components are identical for both towers.
One tower must exist for video, and a distinct second tower must exist for RC link.
Video System Components
CONFIRM WITH EE ON WIRING SPEC. ADDITIONAL BUCK-BOOST BOARDS MAY BE NEEDED DEPENDING ON SYSTEM LAYOUT
Component Name | Function | Link / Spec sheet |
|---|---|---|
RMRC 1.3 GHz Video Receiver | Primary 1.3GHz video receiver | RMRC 900MHz 1.3Ghz High Performance Receiver w/ Custom Tuner - RMRC (readymaderc.com) |
AKK TS832 + antenna (see 2023 static tower) | 5.8 GHz Relay | AKK Wireless AV Transmitter FPV TX for TS832 FPV Racing Drone (akktek.com) |
X-air 1.3 | 1.3ghz fpv antenna |
RC Control System Components
CONFIRM WITH EE ON WIRING & POWER SPEC. ADDITIONAL COMPONENTS MAY BE NEEDED.
Component Name | Function | Link / Spec sheet |
|---|---|---|
ELRS Gemini Board | Primary transmitter / receiver | see #ee-elrs-gemini in discord |
EP1/EP2 RX | Bridge between tx16 and ELRS gemini | Happymodel 2.4g ExpressLRS ELRS nano series receiver module PP RX/ EP1 RX/ EP2 RX – Happymodel |
EP1/EP2 RX (second) | Bridge between ELRS gemini MAVLink and grounside redundant telemetry | Happymodel 2.4g ExpressLRS ELRS nano series receiver module PP RX/ EP1 RX/ EP2 RX – Happymodel |
2.4 ghz yagi (x2) | Diversity yagi antennas | https://www.l-com.com/wireless-antenna-24-ghz-12-dbi-stainless-steel-yagi-antenna-7in-n-female |
Electrical Control System Components
Editor | Name of Electrical Component | Description | Relevant Resources (Links, Photos, Datasheets, etc.) |
|---|---|---|---|
@Hardy Yu | Either Xbee or RFD900 | XBEE: The xbee itself is pretty small, but it usually go along with an interface board that has similar size as xbee itself
RFD900: It usually go along with two antennas attached to it. | XBEE Datasheet: https://www.sparkfun.com/datasheets/Wireless/Zigbee/XBee-Datasheet.pdf  RFD900 datasheet: https://fcc.report/FCC-ID/2ADLE-900X/4165637.pdf 
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@Hardy Yu | BMX 160 | 9-axis sensor from Bosch Sensortec | Datasheet: https://www.mouser.com/pdfdocs/BST-BMX160-DS000-11.pdf |
@Hardy Yu | TBS m8.2 | GPS module | |
@Arjun Mandair | 2000 Series 5-Turn, Dual Mode Servo (25-2, Torque) SKU: 2000-0025-0502
Yaw Servo |
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@Arjun Mandair | 2000 Series Dual Mode Servo (25-2, Torque)
SKU: 2000-0025-0002
Pitch Servo |
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@Arjun Mandair | HS-785HB Servo
Yaw Servo |
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@Hardy Yu @Michael Botros | 6S battery | For the first revision, we power up the system with a 6S. | 6s battery: https://hobbyking.com/en_us/turnigy-battery-heavy-duty-5000mah-6s-60c-lipo-pack-xt-90.html?___store=en_us |
@Hardy Yu | Custom 5V buck converter | The custom 5v buck converter made from EE team Notice that this buck is only graded for 2A So maybe consider adding another buck just for the servo power supply? | Confluence Doc: 24V->12V,5V @ 2A Buck Converter Board
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@Hardy Yu | Prototype Board/Nucleo Shield | Prototype Board: A integration component which connects different electronic peripherials.
Notice this is the temporary solution for the first revision of tracking antenna
Nucleo Shield: A delegated PCB design to attached to the Nucleo L5 to extend the connectively and functionality for antenna tower power and electronic system | Confluence Doc: Tracking Antenna Initial Concept W23 Prototype Board user instruction: How to use the Tracking Antenna Prototype Board Nucleo Shield PCB Design Doc: Tracking Antenna Nucleo Shield Design |
@Hardy Yu | Nucleo L5 | Stm32 processor with tracking antenna algorithm firmware in it
*Very New* EE and Firmware decided they want to switch back from f401 to l5 as the development board |
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Mechanical Control System Components
Editor | Name of Electrical Component | Description | Relevant Resources (Links, Photos, Datasheets, etc.) |
|---|---|---|---|
@Arjun Mandair | 46 Tooth Hex Gear | Gear used to turn the hex shaft: https://www.vexrobotics.com/1-2-hex-bore.html |
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@Arjun Mandair | Flanged Hex Bearing | Bearing used to support the hex shaft: https://www.vexrobotics.com/pro-bearings.html |
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@Arjun Mandair | Yaw Gearbox | Utilized to hold the Antenna Tracker Mechanism and turn the yaw axis with sufficient torque. Can turn the yaw 1 full rotation with the https://www.servocity.com/2000-series-5-turn-dual-mode-servo-25-2-torque/: https://www.servocity.com/stingray-5-servo-gearbox-0-85-sec-60-12-rpm-1750-oz-in-torque-360-rotation/ |
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@Arjun Mandair | Gear for gear Ratio and Spline
| Hex Gear Compatible with https://www.vexrobotics.com/1-2-hex-bore.html & https://www.servocity.com/2000-series-5-turn-dual-mode-servo-25-2-torque/: McMaster-Carr |
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@Arjun Mandair | Servo Shaft Coupler | Utilized to attach the https://www.servocity.com/2000-series-5-turn-dual-mode-servo-25-2-torque/ to the McMaster-Carr: https://www.servocity.com/25-tooth-0-375-x-0-280-servo-shaft/ |
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CAD Status
Item | Description |
|---|---|
Bend Radius of Yaw Servo | Making part is tricky Jigs
Cannot make it on our brake
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Baseplate |
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Press fit bearing |
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Standoff |
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3D printing |
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Order Parts |
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Fasteners |
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