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R/C Models and Toys

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Block Diagram - R/C Models and Toys

Cypress provides a portfolio of wireless solutions to meet the needs of Radio Controlled (R/C) hobby grade models and R/C toys. The following block diagrams illustrate Cypress’ solutions using the WirelessUSB 2.4GHz Transceivers and PSoC / enCoRe MCUs. The diagram also illustrates functionality provided by various blocks / components which are part of the solution.


Figure 1: For R/C hobby grade model or R/C toy


Figure 2: For  remote controller


The tables below provide details regarding functionality available on various devices and can be used as a starting point to identify which device suits your needs.
 

2.4GHz Transceiver Portfolio

2.4GHZ TRANSCEIVERS
MODULATION
INTERNAL AMPLIFIERS
OSC
SPI
RSSI
PMU/LDO
APPLICATIONS
GFSK
DSSS
PA
LNA
WirelessUSB-LP

32/64 bit PN code

Max TX +4dBm

PMU, LDO

R/C hobby grade models and high end R/C toys which need DSSS
(Supports up to 100m range without external PA
Pin out available to control external PA)
WirelessUSB-LP Star

32 bit PN code

Max TX 0dBm

  R/C toys which need DSSS
(Support up to 50m range without external PA)
WirelessUSB-NL  

Max TX 0dBm

LDO

R/C toys which need ~10m range
(Low power consumption and low cost radio)

PSoC / enCoRe MCU Portfolio

PSOC/ ENCORE MCU
MEMORY
CPU
PWM
COMMUNICATION
ADC
DAC
CMP
OSC
APPLICATIONS
FLASH
RAM

SPI, I2C, UART, GPIO, USB

Single chip solutions for R/C hobby grade models and high end R/C toys

Up to 32KB

Up to 2KB

M8C

Using timers

SPI, I2C, GPIO, USB

    MCU with larger flash to support larger protocols for R/C models and R/C toys

Up to 16KB

Up to 1KB

M8C

SPI, I2C, GPIO, USB

  Cost competitive R/C toys which need PWM, ADC etc.

Up to 8KB

Up to 256 bytes

M8C

SPI, USB, GPIO

      Basic MCU for R/C toys

Cypress also provides single chip solutions which integrate MCU and wireless 2.4GHz radio. These are part of the Programmable-Radio-On-a-Chip family:


Design Considerations

Radio-controlled (or R/C) models are self-powered model cars, trucks, planes, boats etc. that can be controlled from a distance using a specialized transmitter. R/C models are commonly grouped into grades as follows:

Hobby grade models
  • Have superior performance, better handling, longer life
  • Have accessories / upgrades available for several years after initial manufacturing
  • Often used in professional events
  • Available in easy to assemble kits or as “Ready-To-Run” (RTR) models requiring minimum to no assembly at all
Toys grade models or R/C Toys
  • Performance and lifespan varies with price
  • Pre-assembled and bought off the shelf
  • Cheaper and easier to operate than hobby grade models
Key design considerations for R/C models and high end R/C toys with respect to radios are as follows:
  • Higher range (distance between remote and model) for outdoor use
  • Minimizing crashes by avoiding interference from other devices
  • Prevention of cross talk when multiple models are operated within transmission range of each other
  • Avoiding multi-path interference (reflected signal fading) and polarization blind spots (signal loss when antenna is directly pointed at transmitter)
Cypress’ WirelessUSB products are built to suit these needs:
  • WirelessUSB-LP has a maximum TX power of +4dBm and an inbuilt Low Noise Amplifier enabling higher range (~100m). Moreover WirelessUSB-LP has a dedicated pin for easy control of external power amplifiers
  • Sub-1GHz bands are getting crowded and more susceptible to interference, WirelessUSB devices operate in the 2.4GHz ISM band
  • DSSS and channel hopping ensure best-in-class interference immunity and superior co-location capability; leading to lower chances of cross talk between models and fewer crashes
  • Use of multiple WirelessUSB transceivers on model or car with different antenna orientations eliminates multi-path interference and polarization blind spots
  • WirelessUSB-NL radio provides channel hopping based interference avoidance and ultra low power consumption, enabling low cost R/C toys manufacturers to get good performance at competitive prices.

Together with this portfolio of radios Cypress also provides Programmable System-on-Chip (PSoC) devices which have inbuilt analog blocks like Analog to Digital Convertors (ADCs), Digital to Analog Convertors (DACs), Pulse Width Modulators (PWMs), Comparators etc. These are ideal for use on the R/C model or R/C toy side to handle functionality like motor control, radio control etc. Cypress also provides the low power enCoRe series of MCUs which can be used on R/C toys or remote controller side.

Cypress’ WirelessUSB radios, PSoCs and enCoRe MCUs provide a complete solution to suit the needs of any R/C model or R/C toys manufacturer.


Application Notes

AN15257 - Guidelines for Evaluating System Performance of Cypress WirelessUSB™ RF Products
Guidelines for Evaluating WirelessUSB™ RF System

AN2141 - PSoC® 1 Glitch Free PWM

AN2373 - Ranking Original Pseudo-Noise Codes in a DSSS System

AN4004 - Interference Mitigation Challenges and Solutions in the 2.4 to 2.5 GHz ISM Band
This application notes discussed avoiding interference using WirelessUSB.

AN43353 - Using enCoRe™ V 16-Bit Timer Modules as PWMs
AN43353 describes how the 16-bit Timer User Module in enCoRe™ V can be leveraged to build a PWM using the part. The PSoC® Designer™ project accompanying this application note discusses the method of implementation.

AN48399 - WirelessUSB™ LP/LPstar Transceiver PCB Layout Guidelines

AN48610 - Design and Layout Guidelines for Matching Network and Antenna for WirelessUSB™ LP Family
AN48610 provides design and layout guidelines for the matching network and antenna recommended for the WirelessUSB™ LP/LPstar radio. Follow these suggestions to minimize time and expenses when developing your own integrated wireless solution.

AN5033 - WirelessUSB™ Dual Antenna Design Layout Guidelines
WirelessUSB(TM) Dual Antenna Design Layout Guidelines

AN54181 - Getting Started with PSoC® 3
PSoC® 1, PSoC 3, and PSoC 5LP are Programmable System-on-Chips that do everything a microcontroller does and more.

AN6066 - Wireless Binding Methodologies
AN6066 discusses the general considerations for deciding on a binding methodology of devices in robust wireless systems, and also gives examples of common binding schemes, highlighting their advantages and disadvantages. It is intended for system architects, particularly those who are relatively new to wireless designs.

AN64285 - WirelessUSB(TM) NL Low Power Radio Recommended Usage and PCB Layout

AN72428 - Schematic Review Checklist for WirelessUSB™ NL
AN72428 discusses the hardware considerations and recommended practices for systems that use WirelessUSB™ NL, the Cypress third generation 2.4-GHz low-power RF technology. WirelessUSB NL operates in the 2.4-GHz ISM band and delivers the next level of low-power performance on a small 4-mm × 4-mm footprint.

AN75320 - Getting Started with PSoC® 1
The PSoC® 1 family combines the benefits of an asic with the convenience of an off-the-shelf device, but without the limitation of a fixed implementation.

Calculating Battery Life in WirelessUSB™ Systems - AN4002
Discusses Calculating Battery Life in WirelessUSB™ Systems.

Code Examples

CE58786 - Implementing Pin Specific Interrupts in enCoRe™ II / enCoRe II LV
This is a basic example that demonstrates how to use the pin specific GPIO interrupts in enCoRe™ II/enCoRe II LV using the CY3655 development kit.

Development Kits/Boards

CY3631 WirelessUSB(TM) Manufacturing Test Kit
The CY3631 WirelessUSB Manufacturing Test Kit (MTK) is an automated platform that enables customers to quickly test their WirelessUSB-enabled products without the need for expensive RF test equipment.

CY3660 enCoRe V / LV Development Kit

CY3668 WirelessUSB NL Development Kit
The CY3668 WirelessUSB-NL development kit provides a generic platform for developing wireless applications based on the WirelessUSB-NL radio and enCoRe II & enCoRe V MCU devices.

CY8CKIT-001 PSoC® Development Kit

CY8CKIT-030 PSoC® 3 Development Kit
The CY8CKIT-030 PSoC® 3 Development Kit enables you to evaluate, develop and prototype high precision analog, low-power and low-voltage applications powered by Cypress’s CY8C38 high precision analog device family.

CY8CKIT-050 PSoC® 5LP Development Kit

Product

Cypress wireless solutions share the qualities of best-in-class interference immunity, superior co-location capability and longer range. Cypress also offers the PSoC devices and an assortment of companion MCUs (enCoRe series).
 
  1. RF/Wireless for Consumer Products
    Cypress's WirelessUSB RF solutions are designed for multipoint-to-point connectivity and use 2.4 GHz ISM band. Cypress's patented WirelessUSB technology offers unparalleled feature set to enable superior RF performance, interference immunity, and maximum battery life
     
  2. RF Companion Microcontrollers
    Cypress offers a line of low-power, 8-bit microcontrollers that are ideal for wireless applications. The devices feature the industry's smallest 8-bit RISC core with flash memory, low power and a variety of internal peripheral functions.
     
  3. Programmable System-on-Chip
    PSoC® is a true programmable embedded system-on-chip integrating configurable analog and digital peripheral functions, memory and a microcontroller on a single chip. And now our breakthrough new PSoC 3and PSoC 5 architectures extend the world’s only programmable embedded system design platform, shattering your design limitations.
     

Technical Articles
Software and Drivers

PSoC Creator
PSoC Creator is a state-of-the-art software development IDE combined with a revolutionary graphical design editor to form a uniquely powerful hardware/software co-design environment.

PSoC Designer
PSoC Designer is the revolutionary Integrated Design Environment (IDE) that you can use to customize PSoC to meet your specific application requirements. PSoC Designer software accelerates system bring-up and time-to-market.

Spec No: None; Sunset Owner: UTSV; Secondary Owner: PRKA; Sunset Date: 06/15/20