Pi40952 3x2b Driver | 360p |

The board features a standard 2.54mm pitch header layout for easy integration into breadboards or perf-board projects.

| IN1 | IN0 | OUT1 | OUT0 | |-----|-----|------|------| | 0 | 0 | 0 | 0 | | 0 | 1 | 0 | 1 | | 1 | 0 | 1 | 0 | | 1 | 1 | 1 | 1 |

(If not a buffer but a decoder/driver, adjust accordingly)

The versatility of a triple-channel, 2-bit driver opens up a wide array of use cases:

To effectively drive the PI40952, you need to interface it with an MCU such as an Arduino, STM32, or ESP32. Below is a practical firmware example. pi40952 3x2b driver

// Define pins for PI40952 Channel A
#define A1 2  // IA1 (Bit 1)
#define A2 3  // IA2 (Bit 2)
#define EN  4  // Master enable
void setup() 
pinMode(A1, OUTPUT);
pinMode(A2, OUTPUT);
pinMode(EN, OUTPUT);
digitalWrite(EN, HIGH); // Enable driver

void motorStop() 
digitalWrite(A1, LOW);
digitalWrite(A2, LOW); // Coast mode

void motorForward() 
digitalWrite(A1, LOW);
digitalWrite(A2, HIGH);

void motorReverse() 
digitalWrite(A1, HIGH);
digitalWrite(A2, LOW);
 The board features a standard 2
void motorBrake() 
digitalWrite(A1, HIGH);
digitalWrite(A2, HIGH);

void loop() 
motorForward();
delay(2000);
motorBrake();
delay(1000);
motorReverse();
delay(2000);
motorStop();
delay(1000);

Assume MMIO or register access via a bus; example registers: Nonfunctional

Modes (example encoding):

Design justification: split registers reduce read-modify-write contention, allow single-register bulk updates, and make interrupt handling efficient.

Sample Initialization Code (Arduino C++ pseudo-code):

// Define pins for Channel A
#define A0 2
#define A1 3
// Channel B
#define B0 4
#define B1 5
// Channel C
#define C0 6
#define C1 7
#define ENABLE 8
void setup() 
pinMode(A0, OUTPUT); pinMode(A1, OUTPUT);
pinMode(B0, OUTPUT); pinMode(B1, OUTPUT);
pinMode(C0, OUTPUT); pinMode(C1, OUTPUT);
pinMode(ENABLE, OUTPUT);
digitalWrite(ENABLE, HIGH); // Enable driver

void setChannelA(int state)  // state: 0=Off, 1=Low, 2=Mid, 3=Full
digitalWrite(A0, state & 1);
digitalWrite(A1, (state >> 1) & 1);