AMS1117 3.3V Power Supply Module

AMS1117 3.3V Power Supply Module Documentation

Introduction

The AMS1117 3.3V Power Supply Module is a compact and efficient voltage regulator module designed to provide a stable 3.3V output from a wide range of input voltages. This module is based on the AMS1117 linear voltage regulator, which is capable of regulating output voltage with high accuracy and low ripple. The module is suitable for use in a variety of IoT applications, including microcontroller-based projects, wireless sensor nodes, and other low-power devices.

Features

Input voltage range: 4V to 12V
 Output voltage: 3.3V  2%
 Output current: up to 1A
 High accuracy and low ripple output
 Compact size: 15mm x 20mm
 Easy to use, with only input and output terminals

Connections

The module has three terminals:

VIN (Input): Connect to a power source (4V to 12V)
 VOUT (Output): Connect to the device requiring 3.3V power
 GND (Ground): Connect to the ground of the power source and the device

Code Examples

### Example 1: Using the AMS1117 3.3V Power Supply Module with Arduino Uno

In this example, we will use the AMS1117 3.3V Power Supply Module to power an Arduino Uno board and a DHT11 temperature and humidity sensor.

```c
#include <DHT.h>

// Define DHT sensor pin
#define DHTPIN 2

// Create a DHT object
DHT dht(DHTPIN, DHT11);

void setup() {
  Serial.begin(9600);
  dht.begin();
}

void loop() {
  int h = dht.readHumidity();
  int t = dht.readTemperature();

Serial.print("Humidity: ");
  Serial.print(h);
  Serial.println(" %");

Serial.print("Temperature: ");
  Serial.print(t);
  Serial.println(" C");

delay(2000);
}
```

Hardware Connection

Connect the VIN terminal of the AMS1117 module to a 5V power source (e.g., a USB port or a battery)
 Connect the VOUT terminal of the AMS1117 module to the VIN pin of the Arduino Uno board
 Connect the GND terminal of the AMS1117 module to the GND pin of the Arduino Uno board
 Connect the DHT11 sensor to digital pin 2 of the Arduino Uno board

### Example 2: Using the AMS1117 3.3V Power Supply Module with Raspberry Pi (Python)

In this example, we will use the AMS1117 3.3V Power Supply Module to power a Raspberry Pi and read data from a DS18B20 temperature sensor.

```python
import os
import time

# Define the DS18B20 sensor file
sensor_file = '/sys/bus/w1/devices/28-000007ebc9ea/w1_slave'

while True:
    try:
        # Read temperature data from the sensor
        f = open(sensor_file, 'r')
        lines = f.readlines()
        f.close()

# Extract temperature value from the data
        temp_c = float(lines[1].split('t=')[1]) / 1000.0
        print("Temperature: {:.2f} C".format(temp_c))

# Wait for 2 seconds before reading again
        time.sleep(2)

except Exception as e:
        print("Error: ", e)
```

Hardware Connection

Connect the VIN terminal of the AMS1117 module to a 5V power source (e.g., a USB port or a battery)
 Connect the VOUT terminal of the AMS1117 module to the Raspberry Pi's 3.3V pin
 Connect the GND terminal of the AMS1117 module to the Raspberry Pi's GND pin
 Connect the DS18B20 sensor to the Raspberry Pi's GPIO pins (data pin to GPIO 4, VCC to 3.3V, and GND to GND)

Note: Make sure to modify the code to suit your specific project requirements and hardware connections.