How to Use MicroView with Programmer: Examples, Pinouts, and Specs

Introduction

The MicroView is an innovative Arduino-compatible module that integrates a small OLED display with a microcontroller development board. This unique combination allows users to create projects with built-in visual feedback without the need for external display modules. Common applications include simple games, status displays for sensors, and educational tools for learning electronics and programming.

Explore Projects Built with MicroView with Programmer

Use Cirkit Designer to design, explore, and prototype these projects online. Some projects support real-time simulation. Click "Open Project" to start designing instantly!

ATMEGA328 Microcontroller Circuit with Serial Programming Interface

This circuit features an ATMEGA328 microcontroller configured with a crystal oscillator for precise timing, and a pushbutton for reset functionality. An FTDI Programmer is connected for serial communication, allowing for programming and data exchange with the microcontroller.

Open Project in Cirkit Designer

I2C-Controlled OLED Display with External EEPROM and Interactive Pushbuttons

This is a microcontroller-based interactive device featuring a Wemos D1 Mini, an OLED display, external EEPROM, and an I/O expander. It includes user input buttons and status LEDs, with potential MIDI interface capabilities.

Open Project in Cirkit Designer

ATMEGA328 Battery-Powered LED Blinker with FTDI Programming

This circuit is a basic microcontroller setup using an ATMEGA328, powered by a 5V battery, and includes an FTDI programmer for serial communication. It features a pushbutton for reset functionality and two LEDs controlled by the microcontroller, with one LED blinking at a 1-second interval as programmed.

Open Project in Cirkit Designer

STM32 and Arduino Pro Mini Based Wireless Data Logger with OLED Display

This circuit integrates multiple microcontrollers (Maple Mini STM32F1, nRF52840 ProMicro, and Arduino Pro Mini) to interface with various peripherals including an SSD1306 OLED display, an SD card module, and a Si4463 RF module. The circuit is designed for data acquisition, storage, and wireless communication, with power supplied through a USB Serial TTL module.

Open Project in Cirkit Designer

Technical Specifications

General Features

• Microcontroller: ATmega328P
• Operating Voltage: 5V
• Input Voltage (recommended): 3.3-5V
• Digital I/O Pins: 12 (of which 3 provide PWM output)
• Analog Input Pins: 6
• DC Current per I/O Pin: 40 mA
• Flash Memory: 32 KB (ATmega328P) of which 0.5 KB used by bootloader
• SRAM: 2 KB (ATmega328P)
• EEPROM: 1 KB (ATmega328P)
• Clock Speed: 16 MHz
• OLED Display: 64x48 pixels monochrome

Pin Configuration

Usage Instructions

Integrating MicroView into a Circuit

1. Powering the MicroView: Connect the VIN pin to a 3.3-5V power supply, or use the USB connection provided by the programmer.
2. Programming the MicroView: Connect the MicroView to your computer using the included programmer. The programmer interfaces with the Arduino IDE for easy code uploading.
3. Using the I/O Pins: Connect sensors, actuators, or other peripherals to the digital and analog pins as required by your project.

Best Practices

• Always disconnect the MicroView from power sources before making or altering connections.
• Use current-limiting resistors with LEDs and other sensitive components to prevent damage.
• Avoid exposing the OLED display to direct sunlight for extended periods to prevent damage.

Example Code for Arduino UNO

#include <MicroView.h>

// Initialize the MicroView object
MicroView uView;

void setup() {
  uView.begin(); // Initialize the OLED display
  uView.clear(PAGE); // Clear the screen
  uView.print("Hello, World!"); // Print a message to the screen
  uView.display(); // Refresh the display to show the message
}

void loop() {
  // Main loop code goes here
}

Troubleshooting and FAQs

Common Issues

• Display Not Working: Ensure that the MicroView is correctly seated in the programmer and that the programmer is properly connected to your computer.
• Sketch Not Uploading: Check the Arduino IDE's selected board and port. Make sure drivers are installed if necessary.
• Garbled Display: This can happen if the display is not properly initialized. Ensure that uView.begin(); is called in the setup() function.

FAQs

Q: Can I use the MicroView with a battery? A: Yes, the MicroView can be powered by a battery connected to the VIN pin, as long as the voltage is within the recommended range.

Q: Is the OLED display replaceable? A: The OLED display is not designed to be user-replaceable. Handle the display with care to avoid damage.

Q: How do I clear the display? A: Use uView.clear(PAGE); to clear the display. Remember to call uView.display(); to refresh the screen after clearing.

For further assistance, consult the MicroView community forums or contact technical support.