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R/C Models and Toys | Cypress Semiconductor

Block Diagram

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


32/64 bit PN code

Max TX +4dBm


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)

Max TX 0dBm


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

PSoC / enCoRe MCU Portfolio



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

Up to 32KB

Up to 2KB


Using timers


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

Up to 16KB

Up to 1KB



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

Up to 8KB

Up to 256 bytes



      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

Development Kits/Boards

  • 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.

  • 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.

  • CY5677 CySmart BLE 4.2 USB Dongle is a BLE-USB bridge featuring a Bluetooth 4.2-compliant PSoC 4 BLE, enabling you to test and debug Bluetooth Low Energy systems.

  • The CY8CKIT-001 PSoC® Development Kit (DVK) provides a common development platform where you can prototype and evaluate different solutions using any one of the PSoC 1, PSoC 3, PSoC 4, or PSoC 5 architectures.

  • 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.

  • The CY8CKIT-050 PSoC® 5LP Development Kit enables you to evaluate, develop and prototype high precision analog, low-power and low-voltage applicati

  • CYW920706WCDEVAL Chip

  • The Cypress CYW920719Q40EVB-01 Evaluation Kit enables you to evaluate and develop single-chip Bluetooth applications using the CYW20719, an ultra-low-power dual-mode Bluetooth 5.0 wireless MCU device.

  • The Cypress CYW920819EVB-02 Evaluation Kit enables you to evaluate and develop single-chip Bluetooth applications using the CYW20819, an ultra-low-power dual-mode Bluetooth 5.0 wireless MCU device.

Code Examples

Technical Articles


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.

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.