Transform your hardware management with DS2413 and PIC32MZ2048EFH100
Say goodbye to complicated device control
Published Apr 24, 2023
Click board™
1-Wire Switch Click
Dev Board
Flip&Click PIC32MZ
Compiler
NECTO Studio
MCU
PIC32MZ2048EFH100
Take your device control to the next level with a programmable I/O 1-Wire switch - the easy way to remotely switch and sense devices
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Hardware Overview
How does it work?
1-Wire Switch Click is based on the DS2413, a dual-channel addressable switch from Analog Devices. The DS2413 combines two programmable I/O pins and a fully featured 1-Wire interface in a single package, ensuring that PIO output changes occur error-free. The PIO outputs are configured as open-drain, operate at up to 28V (provide a high level of fault tolerance in the end application), and have an ON-resistance of 20Ω maximum. By monitoring the voltage at its programmable I/O pins, the DS2413 lets you read back the state of the load, in this case, the state of the button, which in this configuration is in the role of input, while the output state is visually detected through the red LED marked with OUT. The DS2413's power is supplied parasitically from the 1-Wire bus,
a system with a single bus controller and one or more peripherals. With that in mind, this Click board™ has one additional unpopulated header, which enables the connection of other external 1-Wire devices, thus forming a line with several peripherals on one controller. The DS2413 also has a 64-bit long registration number that guarantees unique identification. This number addresses the device in a multidrop 1-Wire network environment, where multiple devices reside on a common 1-Wire bus and operate independently. As mentioned, the 1-Wire Switch Click communicates with MCU using the 1-Wire interface that, by definition, requires only one data line (and ground) for communication with MCU. The 1-Wire communication line is routed to the SMD jumper
labeled as I/O SEL, which allows routing of the 1-Wire communication either to the GP0 pin or the GP1 pin of the mikroBUS™ socket. These pins are labeled, respectively, the same as the SMD jumper positions, making the selection of the desired pin simple and straightforward. This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. However, the Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used, as a reference, for further development.
Features overview
Development board
Flip&Click PIC32MZ is a compact development board designed as a complete solution that brings the flexibility of add-on Click boards™ to your favorite microcontroller, making it a perfect starter kit for implementing your ideas. It comes with an onboard 32-bit PIC32MZ microcontroller, the PIC32MZ2048EFH100 from Microchip, four mikroBUS™ sockets for Click board™ connectivity, two USB connectors, LED indicators, buttons, debugger/programmer connectors, and two headers compatible with Arduino-UNO pinout. Thanks to innovative manufacturing technology,
it allows you to build gadgets with unique functionalities and features quickly. Each part of the Flip&Click PIC32MZ development kit contains the components necessary for the most efficient operation of the same board. In addition, there is the possibility of choosing the Flip&Click PIC32MZ programming method, using the chipKIT bootloader (Arduino-style development environment) or our USB HID bootloader using mikroC, mikroBasic, and mikroPascal for PIC32. This kit includes a clean and regulated power supply block through the USB Type-C (USB-C) connector. All communication
methods that mikroBUS™ itself supports are on this board, including the well-established mikroBUS™ socket, user-configurable buttons, and LED indicators. Flip&Click PIC32MZ development kit allows you to create a new application in minutes. Natively supported by Mikroe software tools, it covers many aspects of prototyping thanks to a considerable number of different Click boards™ (over a thousand boards), the number of which is growing every day.
Microcontroller Overview
MCU Card / MCU
Architecture
PIC32
MCU Memory (KB)
2048
Silicon Vendor
Microchip
Pin count
100
RAM (Bytes)
524288
Used MCU Pins
mikroBUS™ mapper
Take a closer look
Schematic
Step by step
Project assembly
Start by selecting your development board and Click board™. Begin with the Flip&Click PIC32MZ as your development board.
Track your results in real time
Application Output via Debug Mode
1. Once the code example is loaded, pressing the "DEBUG" button initiates the build process, programs it on the created setup, and enters Debug mode.
2. After the programming is completed, a header with buttons for various actions within the IDE becomes visible. Clicking the green "PLAY" button starts reading the results achieved with the Click board™. The achieved results are displayed in the Application Output tab.
Software Support
Library Description
This library contains API for 1-Wire Switch Click driver.
Key functions:
c1wireswitch_set_pio_state1-Wire Switch write specific programmable I/O state function.c1wireswitch_get_pio_state1-Wire Switch read specific programmable I/O state function.c1wireswitch_get_pio_latch_state1-Wire Switch read programmable I/O latch state function.
Open Source
Code example
This example can be found in NECTO Studio. Feel free to download the code, or you can copy the code below.
/*!
* @file main.c
* @brief 1-Wire Switch Click Example.
*
* # Description
* This library contains API for 1-Wire Switch Click driver.
* The library initializes and defines the 1-Wire bus drivers to
* write and read data for state programmable I/O,
* as well as the default configuration.
*
* The demo application is composed of two sections :
*
* ## Application Init
* Initializes the driver and performs default configuration and sets
* the PIO A to OFF and PIO B to ON state.
*
* ## Application Task
* This example demonstrates the use of the 1-Wire Switch Click board by changing the PIO A state,
* which is controlling the LED, every time the state of PIO B changes.
* Change on the PIO B happens when the button is pushed.
*
* @author Stefan Ilic
*
*/
#include "board.h"
#include "log.h"
#include "c1wireswitch.h"
static c1wireswitch_t c1wireswitch;
static log_t logger;
static uint8_t state = 0;
void application_init ( void )
{
log_cfg_t log_cfg; /**< Logger config object. */
c1wireswitch_cfg_t c1wireswitch_cfg; /**< Click config object. */
/**
* Logger initialization.
* Default baud rate: 115200
* Default log level: LOG_LEVEL_DEBUG
* @note If USB_UART_RX and USB_UART_TX
* are defined as HAL_PIN_NC, you will
* need to define them manually for log to work.
* See @b LOG_MAP_USB_UART macro definition for detailed explanation.
*/
LOG_MAP_USB_UART( log_cfg );
log_init( &logger, &log_cfg );
log_info( &logger, " Application Init " );
// Click initialization.
c1wireswitch_cfg_setup( &c1wireswitch_cfg );
C1WIRESWITCH_MAP_MIKROBUS( c1wireswitch_cfg, MIKROBUS_1 );
if ( ONE_WIRE_ERROR == c1wireswitch_init( &c1wireswitch, &c1wireswitch_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
if ( C1WIRESWITCH_ERROR == c1wireswitch_default_cfg ( &c1wireswitch ) )
{
log_error( &logger, " Default configuration." );
for ( ; ; );
}
c1wireswitch_set_pio_state( &c1wireswitch, C1WIRESWITCH_PIOA_OFF, C1WIRESWITCH_PIOB_ON );
log_info( &logger, " Application Task " );
}
void application_task ( void )
{
uint8_t pio_a = 0;
uint8_t pio_b = 0;
c1wireswitch_get_pio_state( &c1wireswitch, &pio_a, &pio_b );
if ( pio_b == C1WIRESWITCH_PIOB_OFF )
{
if ( state == 0 )
{
c1wireswitch_set_pio_state( &c1wireswitch, C1WIRESWITCH_PIOA_ON, C1WIRESWITCH_PIOB_ON );
log_printf( &logger, " Button is pressed, LED is ON. \r\n " );
state = 1;
}
else
{
c1wireswitch_set_pio_state( &c1wireswitch, C1WIRESWITCH_PIOA_OFF, C1WIRESWITCH_PIOB_ON );
log_printf( &logger, " Button is pressed, LED is OFF. \r\n " );
state = 0;
}
Delay_ms( 100 );
}
Delay_ms( 100 );
}
void main ( void )
{
application_init( );
for ( ; ; )
{
application_task( );
}
}
// ------------------------------------------------------------------------ END
