This repository contains examples and demos for PSoC 4 MCU family of devices, world's Most Flexible 32-bit ARM Cortex-M0 One-Chip Solution. Cypress provides a wealth of data at www.cypress.com to help you select the right PSoC device and effectively integrate it into your design. Visit our PSoC 4 MCU webpage to explore more about PSoC 4 MCU family of device.
Feel free to explore through the code example source files and Let us innovate together!
Cypress provides PSoC 4 based development kits for various family of PSoC 4 devices. These development kit helps you validate your prototype design before starting the actual design development. Refer to the Hardware section for the list of PSoC 4 development kits.
Each Development Kit is packaged with set of code examples which can get you started with PSoC 4 MCU as well as develop the hardware for your application by using the Kit hardware configuration as a reference.
This repository contains all the kit related examples and the kit user guide. Refer to the respective kit user guide for the project implementation details.
If you are new to developing projects with PSoC 4 MCU, we recommend you to refer the PSoC 4 Getting Started GitHub page which can help you familiarize with device features and guides you to create a simple PSoC 4 design with PSoC Creator IDE. For other block specific design please visit the following GitHub Pages:
To use the code examples in this repository, please download and install PSoC Creator
Note Please refer to the code example documnetation for selecting the appropriate kit for testing the project
This example uses a PWM block to blink the red LED of the RGB LED. The PWM output is connected to pin P3_2 (red) of the RGB LED. The PWM block is configured as a digital clock signal generator with a frequency of 1 Hz. The blinking rate can be varied by changing the period and compare value of the PWM.
The project CY8CKIT_040_Proximity_UART.cyprj implements a capacitive proximity sensor control ling the brightness of a LED. The project configures the sensor as a CapSense proximity widget with SmartSense Auto-tuning.
The project CY8CKIT_40_CapSense_I2C.cyprj demonstrates the implementation of a CapSense Trackpad using SmartSense and an EzI2C-based CapSense Tuner window for viewing the Trackpad coordinates. The project is a simple implementation using SmartSense (minimal tuning). The EzI2C block of PSoC 4000 is interfaced through the PSoC 5LP based USB-I2C bridge to the PC GUI. The project uses the SmartSense feature, which sets all CapSense parameters to the optimum values automatically
The project CY8CKIT_040_Color_Palette.cyprj demonstrates the capability of PSoC 4000 device to interface with a capacitive Trackpad and control an RGB LED based on the color selected by touching the sticker on top of the Trackpad. The sticker will also include a slider area (part of Trackpad), which will control the color brightness of the RGB LED. The project will demonstrate the proximity sensing capability of the device using a wire. The LED intensity control is done using software Precision Illumination Signal Modulator (PrISM).
This code example implements two CapSense buttons using CY8CKIT-041-41XX. The left button is used to control the onboard RGB LED color, and the right button is used to control the brightness of the RGB LED. Using the low-power modes available in the PSoC 4100S device, an average current of 5 µA per button is achieved when the touch is not detected.
This code example demonstrates CapSense based proximity sensing using a PCB trace as a proximity sensor. A proximitysensing distance of 5 cm is achieved using a rectangular loop sensor with a 9-cm diagonal. Proximity detection is indicated by controlling the brightness of an LED. The LED has a minimum brightness when the hand is at a distance of 5 cm; it gradually increases as the hand approaches the sensor. Using the low-power modes available in the PSoC 4100S device, an average current of 25 µA is achieved while detecting the proximity of a hand at 5 cm.
This code example implements a CapSense based trackpad as a user interface. The trackpad has the CIE 1931 color gamut imprinted; user inputs (touch coordinates) are converted to the corresponding color coordinates. The RGB LED on the board is used to illustrate the chosen color by modulating the associated signal densities. The brightness of the RGB LED is controlled by using the two CapSense buttons.
This code example implements a CapSense trackpad and two button sensors using a PSoC 4100S device. The PSoC device is interfaced to a Windows PC as a mouse using the USB HID protocol. The trackpad controls the cursor on the PC and the two button sensors act as right-click and left-click buttons. To optimize device power consumption and provide optimum touch response, this code example implements two power modes: Fast Scan Mode and Slow Scan Mode.
This code example demonstrates the use of the Sequencing SAR ADC Component to measure an input voltage on any I/O pin. The example also shows how to implement a breathing LED using the Smart IO Component. The breathing LED effect is implemented by XORing two pulse-width modulation (PWM) signals which have slightly different frequencies. There are four levels of breathing rates and three different color LEDs. Depending on the ADC result, a specific LED and breathing rate is chosen. The ADC result is sent over I2C to a host PC running Cypress's Bridge Control Panel (BCP) program.
This example uses a pulse-width modulator (PWM) to illuminate the RGB LED. The PWM output is connected to pin P0_3 (blue) of the RGB LED. The frequency of blinking is set to 1 Hz with a duty cycle of 50 percent. The blinking frequency and duty cycle can be varied by varying the period and compare value respectively.
This code example demonstrates the use of the PWM component. The project uses three PWM outputs to set the color of RGB LED on the Pioneer Kit. The LED cycles through seven colors – violet > indigo > blue > green > yellow > orange > red (VIBGYOR). Each color is maintained for a duration of one second. The different colors are achieved by changing the pulse width of the PWMs
LED is on for one second and turns off, which indicates that the device has entered Deep-Sleep mode. Press SW2 switch to wake up the device from Deep-Sleep mode and enter Active mode. The device goes back to sleep after one second..
The brightness of the green and red LEDs are varied based on the position of the user’s finger on the CapSense slider. When the finger is on segment 5 (P1[5]) of the slider, the green LED is brighter than the red LED; when the finger is on segment 1 (P1[1]) of the slider, the red LED is brighter than the green LED.
This project demonstrates connectivity between the BLE Pioneer Kit (acting as a Peripheral and GATT server device) and CySmart Central Emulation tool or mobile device running the CySmart mobile application (acting as a Central and GATT client device). It transfers CapSense Slider data and RGB LED color data between the connected devices over BLE.
This project demonstrates connectivity between the BLE Pioneer Kit (acting as a Peripheral and GATT server device) and CySmart Central Emulation tool or mobile device running the CySmart mobile application (acting as a Central and GATT client device). It transfers CapSense proximity data from the kit to the connected BLE client device.
This example project demonstrates the Central and GATT client mode where the kit will scan for a Peripheral device, connect to it, and send commands. In this project, the BLE Pioneer Kit scans and autoconnects to a particular Peripheral device supporting Immediate Alert Service (IAS).
This project configures the kit for Direct Test Mode using Host Controller Interface (HCI). Direct Test Mode (DTM) is a method to test the BLE PHY layer and provide a report back to the tester.
This project demonstrates a BLE beacon based on Google's Eddystone™ protocol on the BLE Pioneer Kit. A beacon is a wireless device that broadcasts data (such as temperature) over a periodic radio signal from a known location. BLE-based beacons use the BLE advertisement packets to broadcast data.
This project demonstrates the Deep-Sleep low-power mode of the PSoC 4200M device. The PSoC 4200M device is configured to be in Deep-Sleep power mode and wakes-up once every second. The PSoC 4200M toggles the state of the GPIO each time the device wakes up from Deep-Sleep power mode.
This project demonstrates the proximity sensing capability of the PSoC 4200M device. The CapSense scans for an approaching hand every 100ms and enters a low-power mode if proximity is not detected. The PSoC 4200M gradually increases the brightness of the green LED as the hand approaches the proximity sensor. If proximity is not detected for a period more than 3s, the PSoC 4200M increases the CapSense scanning interval to 100ms.
This project demonstrates the proximity gesture detection capability of the PSoC 4200M device using CapSense. The PSoC 4 M-Series Pioneer Kit has two headers which are used to connect proximity wires. These wires are used as proximity sensors to detect an approaching hand.
This example project demonstrates the touch gesture recognition capability of the PSoC 4200M device using the CapSense Gesture Pad. This Gesture Pad has five buttons arranged similar to a joystick.
This example project shows a method to interface the onboard digital accelerometer with the PSoC 4200M device. The accelerometer is assigned with the I2C address 0x0F.
This example project demonstrates the capability of the PSoC 4200M device to function as a sensor hub device. The PSoC 4200M can interface with multiple digital and analog sensors. In this example project, the PSoC 4200M interfaces an I2C-based accelerometer, a PWM-based temperature sensor, and an ambient light sensor. This example project requires the associated µC/Probe project files to show the output.
This project demonstrates the capability of the PSoC 4200M device to function as a sensor hub and output the values to a Raspberry Pi. In this example project, the PSoC 4200M interfaces an I2C-based accelerometer, a PWM-based temperature sensor, an I2C-based F-RAM, and an ambient light sensor.
This code example demonstrates the DeepSleep low-power mode of the PSoC 4200L device. The device is configured to be in DeepSleep mode and wakes up once every second. The PSoC 4200L toggles the GPIO state each time the device wakes up from DeepSleep mode. The GPIO is connected to the green LED on the kit, which turns on and off depending upon the GPIO state. The example also demonstrates a method to calibrate the ILO clock based on the IMO clock signal for better ILO accuracy. The calibrated LFCLK is used to source the watchdog timer.
This code example demonstrates the proximity sensing capability of the PSoC 4200L device. The CapSense scans for an approaching hand every 100 ms and enters a low-power mode when proximity is not detected. This allows the PSoC 4200L to operate at lower average power levels. The scanning interval is decreased such that the CapSense scan is performed every 30 ms when proximity is detected. The PSoC 4200L gradually increases the brightness of the blue LED as a hand approaches the proximity sensor. If proximity is not detected for a period more than 3s, the PSoC 4200L increases the CapSense scanning interval back to 100 ms.
This code example demonstrates the proximity gesture detection capability of the PSoC 4200L device using CapSense.
This code example demonstrates basic dual-channel CapSense functionality in the PSoC 4 L-Series Pioneer Kit. The example implements five CapSense buttons using the CSD0 block and a proximity sensor using the CSD1 block. The buttons are used to control the brightness and color of the onboard RGB LED. The signal from the proximity sensor provides an additional brightness control factor. The LED brightness level is controlled by the buttons and the proximity signal provides a multiplication factor to the brightness output from the buttons
This code example demonstrates a simple USB human interface device (HID) implementation (mouse/keyboard) using the CapSense Gesture Pad present in the CY8CKIT-046 PSoC 4 L-Series Pioneer Kit. In addition to emulating mouse/keyboard over USB, the example also controls the RGB LED intensity.
This code example demonstrates the capability of PSoC 4200L to provide a high-quality audio playback and recording interface to a Windows or Mac PC. The example uses the PSoC 4200L USB to implement an asynchronous USB Audio Class v1.0 compliant device. The PSoC 4 L-Series Pioneer Kit has a standard 3.5-mm TRRS audio jack onboard and an audio codec to convert digital audio stream into analog and vice-versa. These components along with PSoC 4200L implement the complete USB Audio interface.
PSoC 4 is the world's Most Flexible 32-bit ARM Cortex-M0 One-Chip Solution. PSoC 4 has tackled some of the complex portions of embedded system design making it easier for you to get your product to market. Functions such as analog sensor integration, capacitive touch, and wireless connectivity have been integrated and optimized in PSoC 4 to “just work” so you don’t have to. To learn more on the device. Learn more: PSoC 4 MCU
Device datasheets list the features and electrical specifications of PSoC 4 families of devices: PSoC 4 MCU Datasheets
Application notes are available on the Cypress website to assist you with designing your PSoC application: A list of PSoC 4 MCU ANs
PSoC Creator utilizes "components" as interfaces to functional Hardware (HW). Each component in PSoC Creator has an associated datasheet that describes the functionality, APIs, and electrical specifications for the HW. You can access component datasheets in PSoC Creator by right-clicking a component on the schematic page or by going through the component library listing. You can also access component datasheets from the Cypress website: PSoC 4 Component Datasheets
The TRM provides detailed descriptions of the internal architecture of PSoC 4 devices:PSoC 4 MCU TRMs
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