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OrangeRXmodule

Last printed 4/8/2015 4:19:00 PM

Project Overview Statement

Technical Summary

Project Name: Switchable Tx Module

Department: Engineering

Last Updated: Jul, 31/2013

Author: Evgeny Sazhaev

Project Development Case

Project Overview

Switchable module is a substitute or in parallel of Orange Module 9171000069

The module is used in Futaba- compatible module transmitters with

DSM2/DSMx/Walkera receivers.

In addition to manual selection by switches there will be an automatic selection option.

This mode will be selected based on the best protocol available in the receiver.

Hardware requirements:

Connection to transmitter - Standard Futaba compatible 5-pin connection

Input – PPM, 5V

Output power: switch selectable, 4 levels:

 10mW

 25mW

 50mW

 100mW

Output protocols:

 DSM2 –1024/22ms, 2048/11ms

 DSMx – 22ms/11ms

 Walkera Devo

Summary of content (8 pages)

PAGE 1
Project Overview Statement Technical Summary Project Name: Switchable Tx Module Department: Engineering Last Updated: Jul, 31/2013 Author: Evgeny Sazhaev Project Development Case Project Overview Switchable module is a substitute or in parallel of Orange Module 9171000069 The module is used in Futaba- compatible module transmitters with DSM2/DSMx/Walkera receivers. In addition to manual selection by switches there will be an automatic selection option.
PAGE 2
Project Overview Statement—Executive Summary Primary Project Objectives Primary Project Objectives Design the module having the same basic functionality as Assan and Orange modules and in addition to extend to an advanced functionality selected by 8 single pole dual throw switches.
PAGE 3
Project Overview Statement—Executive Summary 4. SW4: DSM2/DSMx. Selects DSM2/DSMx protocols in manual mode OFF-DSM2 ON-DSMx Switch position will be ignored in auto mode(when SW3 is ON) 5. SW5: 11ms/22ms for DSM2 and DSMx ON-11ms OFF-22ms Switch position will be ignored in auto mode(when SW3 is ON) 6. SW6: 1024/2048 for DSM2 only. OFF-1024 ON-2048 Switch position will be ignored in auto mode(when SW3 is ON) and for DSMx 7.
PAGE 4
Project Overview Statement—Executive Summary Connector P1 Pin description:  PIN1- PPM signal, TTL 5V  PIN2- Not connected,  PIN3- VCC In, 6-18VDC, 100mA  PIN4- GND  PIN5- for future use Antenna connector:  SMA connector to attach a standard rubber duck 2.4GHz 50Ohm antenna. Buttons Button 1(ID)  Both Spectrum and Walkera modes: when pressed upon power on a new unique ID is assigned to Tx. Totally 4 billion combinations available.
PAGE 5
Project Overview Statement—Executive Summary      beeps(0.1s) indicating that the system is ready When module transmits RF packet red LED is ON. Therefore it is ON during binding and standard transmitting procedures The module works in so called “non-fixed ID” mode. Every time the power is recycled a binding procedure will be automatically initiated. After power ON and receiving valid PPM signal the module enters BIND mode and transmits bind packets for 10 seconds.
PAGE 6
Project Overview Statement—Executive Summary  Binding procedure: After power ON with the Button2 detected pressed and valid PPM signal present the module generates three sort beeps and enters binding procedure. The module sets output power at 10mW The module transmits 125 packets with delays 10ms between packets, then makes 200 attempts of receiving with 20ms delays in between.
PAGE 7
Project Overview Statement—Executive Summary  Buzzer – see Functionality  LED – see Functionality Functionality Power ON:  When powered up the module is waiting for valid PPM signal to be detected.  As soon as PPM signal is detected the buzzer generates three short beeps(0.1s) indicating that the system is ready  When module transmits RF packets red LED blinks in accordance to the mode selected.
PAGE 8
Project Overview Statement—Executive Summary Confidential Page 8 4/8/2015