Ground Receiver Parts

Teensy 4.1

Link

• Ethernet Compatible

• On-board MicroSD Card Reader

• Expandable Memory (Flash and PSRAM)

• Supply Voltage: 5V

• Supply Current: 250 mA (Estimation)

  • USB can supply up to 500 mA, and the 3.3V pin can supply up to 250mA

900MHz XBee SX / XBee Pro SX

SX 900 Datasheet

User Guide

RF Transmitter and Receiver

• Require 2 units; one for the flight computer and one for the payload

• Supply Voltage: 3.3V

• Receive Current 40 mA (SX and Pro SX)

• Sleep Current 2.5 uA (SX and Pro SX)

• Transmit Current

  • Can be ignore - Will not be transmitting

  • Pro SX up to 900 mA transmit current

  • SX up to 55 mA transmit current

LCD Display

Used to display rocket location and possibly connection to the flight computer.

Amazon

• Supply Voltage: 5V

• Supply Current: ~35mA (measured)

• Question: Will content be visible outside?

LEDs

• Indicate Power on

• Indicate connection to flight computer (and payload)

Buttons

• Display menus

Power

Required Voltages: 

• 5V

• 3.3V - Use off of Teensy?

Note: Assume 0805 package size for resistors and capacitors unless stated otherwise.