Upgrade your audio game with SPQ0410HR5H-B and PIC18F57Q43
Hear the difference. Be heard!
Published Feb 13, 2024
Click board™
Mic Click
Dev. board
Curiosity Nano with PIC18F57Q43
Compiler
NECTO Studio
MCU
PIC18F57Q43
Create crystal-clear audio recordings with your own custom-built microphone system
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Hardware Overview
How does it work?
Mic Click is based on the SPQ0410HRSH-B, a slim ultra-mini SiSonic™ microphone specification with maximum RF protection and ultra-narrow design from Knowles. It is a MEMS microphone and consists of an acoustic sensor, a low noise input buffer, and an output amplifier. It is a very reliable microphone, resistant to mechanical shocks, vibrations, thermal shocks, low and high temperatures, ESD-HBM, and more. It is not resistant to high pressure and vacuum. The
microphone is top-port oriented and has a typical sensitivity of -42dB at 94dB SPL, with a 59dB signal-to-noise ratio. Mic Click uses an analog OUT pin of the mikroBUS™ socket to communicate with the host MCU. The analog output from the microphone to the OUT pin goes through the MCP6022, a rail-to-rail input/output 10MHz Op Amp from Microchip. This operational amplifier has a wide bandwidth, low noise, low input offset voltage, and low distortion and amplifies the
microphone's output with high performance. This Click board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before using MCUs with different logic levels. Also, it comes equipped with a library containing functions and an example code that can be used as a reference for further development.
Features overview
Development board
PIC18F57Q43 Curiosity Nano evaluation kit is a cutting-edge hardware platform designed to evaluate microcontrollers within the PIC18-Q43 family. Central to its design is the inclusion of the powerful PIC18F57Q43 microcontroller (MCU), offering advanced functionalities and robust performance. Key features of this evaluation kit include a yellow user LED and a responsive
mechanical user switch, providing seamless interaction and testing. The provision for a 32.768kHz crystal footprint ensures precision timing capabilities. With an onboard debugger boasting a green power and status LED, programming and debugging become intuitive and efficient. Further enhancing its utility is the Virtual serial port (CDC) and a debug GPIO channel (DGI
GPIO), offering extensive connectivity options. Powered via USB, this kit boasts an adjustable target voltage feature facilitated by the MIC5353 LDO regulator, ensuring stable operation with an output voltage ranging from 1.8V to 5.1V, with a maximum output current of 500mA, subject to ambient temperature and voltage constraints.
Microcontroller Overview
MCU Card / MCU
Architecture
PIC
MCU Memory (KB)
128
Silicon Vendor
Microchip
Pin count
48
RAM (Bytes)
8196
You complete me!
Accessories
Curiosity Nano Base for Click boards is a versatile hardware extension platform created to streamline the integration between Curiosity Nano kits and extension boards, tailored explicitly for the mikroBUS™-standardized Click boards and Xplained Pro extension boards. This innovative base board (shield) offers seamless connectivity and expansion possibilities, simplifying experimentation and development. Key features include USB power compatibility from the Curiosity Nano kit, alongside an alternative external power input option for enhanced flexibility. The onboard Li-Ion/LiPo charger and management circuit ensure smooth operation for battery-powered applications, simplifying usage and management. Moreover, the base incorporates a fixed 3.3V PSU dedicated to target and mikroBUS™ power rails, alongside a fixed 5.0V boost converter catering to 5V power rails of mikroBUS™ sockets, providing stable power delivery for various connected devices.
Used MCU Pins
mikroBUS™ mapper
Take a closer look
Click board™ Schematic
Step by step
Project assembly
Start by selecting your development board and Click board™. Begin with the Curiosity Nano with PIC18F57Q43 as your development board.
Software Support
Library Description
This library contains API for MIC Click driver.
Key functions:
mic_generic_read- This function read ADC data
Open Source
Code example
The complete application code and a ready-to-use project are available through the NECTO Studio Package Manager for direct installation in the NECTO Studio. The application code can also be found on the MIKROE GitHub account.
/*!
* \file
* \brief Mic Click example
*
* # Description
* This example showcases the initialization and configuration of the Click and logger
* modules and later on reads and displays data recorded by the mic.
*
* The demo application is composed of two sections :
*
* ## Application Init
* Initializes LOG communication, ADC and configures AN pin as input on MIKROBUS1.
*
* ## Application Task
* Reads 12 bit ADC data from AN pin and displays it using the logger module.
*
* \author MikroE Team
*
*/
// ------------------------------------------------------------------- INCLUDES
#include "board.h"
#include "log.h"
#include "mic.h"
// ------------------------------------------------------------------ VARIABLES
static mic_t mic;
static log_t logger;
// ------------------------------------------------------ APPLICATION FUNCTIONS
void application_init ( void )
{
log_cfg_t log_cfg;
mic_cfg_t cfg;
/**
* 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.
mic_cfg_setup( &cfg );
MIC_MAP_MIKROBUS( cfg, MIKROBUS_1 );
mic_init( &mic, &cfg );
}
void application_task ( void )
{
mic_data_t tmp;
// Task implementation.
tmp = mic_generic_read ( &mic );
log_printf( &logger, "** ADC value : [DEC]- %d, [HEX]- 0x%x \r\n", tmp, tmp );
Delay_ms ( 1000 );
}
int main ( void )
{
/* Do not remove this line or clock might not be set correctly. */
#ifdef PREINIT_SUPPORTED
preinit();
#endif
application_init( );
for ( ; ; )
{
application_task( );
}
return 0;
}
// ------------------------------------------------------------------------ END
Additional Support
Resources
Category:Microphone
