Pololu USB AVR Programmer v2.1

£7.85 inc VAT

Availability: 22 in stock (can be backordered)

Brand: Pololu
Part Number: 3172
SKU: PPPOL3172
Barcode: 5055421086268
SKU: PPPOL3172 Categories: , , , Tags: , , , , ,

The Pololu USB AVR Programmer v2.1 is a compact, low-cost in-system programmer (ISP) for AVR microcontrollers from Atmel (now a part of Microchip). The programmer provides an interface for transferring a compiled AVR program from your computer to the target AVR’s non-volatile memory, allowing it to run the program.  It can also be used to update, replace, or remove the bootloader on some Arduino boards including the Uno, Leonardo, and Mega. This programmer is designed to work well with both 3.3 V and 5 V devices, and it can even be configured to provide power to the target device in low-power systems.

The programmer connects to your computer’s USB port via a standard USB A to Micro-B cable (not included) and communicates with your programming software, such as Atmel Studio, AVRDUDE, or the Arduino IDE, through a virtual COM port using the STK500 protocol. The programmer connects to your target device via an included 6-pin ISP programming cable . The programmer also acts as a USB-to-TTL serial adapter, providing a TTL-level serial port that can be used to communicate with other serial devices from your computer. It ships fully assembled with connectors soldered in as shown.

 

Pololu USB AVR Programmer Features

  • Connects to a computer through USB via a USB A to Micro-B cable (not included)
  • Emulates an STK500 programmer through virtual COM port interface
  • Works with standard AVR programming software, including Atmel Studio, AVRDUDE, and the Arduino IDE
  • Configuration software available for Windows, Mac OS X, and Linux
  • Supports both 3.3 V and 5 V devices; can automatically switch operating voltage based on detected target VCC
  • Can optionally power the target at 3.3 V or 5 V in low-power systems
  • USB-to-TTL serial adapter functionality for general-purpose serial communication
  • Provides a 100 kHz clock output, which can be useful for reviving misconfigured AVRs
  • All I/O pins are protected with 470 Ω resistors
  • 6-pin ISP cable and a 1×6 double-sided male header included
  • Comprehensive user’s guide

 

Supported AVR microcontrollers

The programmer should work with all AVRs that can be programmed with the AVR ISP (in-system programming) interface, which is also known as in-circuit serial programming (ICSP), serial programming, or serial downloading, but it has not been tested with all devices. We expect it to work with most AVRs in the megaAVR (ATmega) family, and it works with some members of the tinyAVR (ATtiny) family, but it does not support the Tiny Programming Interface (TPI), and it does not work with the XMEGA family or with 32-bit AVRs. The programmer features upgradable firmware, allowing updates for future devices.

The programmer is designed for use with AVR microcontrollers running at either 3.3 V or 5 V. By default, the programmer expects the target to be self-powered, but it can be configured to deliver power to the target device in low-power systems.

 

Bonus feature: TTL-level serial port

This programmer doubles as a USB-to-serial adapter. The programmer installs as two virtual COM ports: one for communicating with programming software and one for general-purpose serial communications. This means that you can seamlessly switch between programming an AVR and debugging it through the TTL serial port without having to open and close your terminal program. In addition to the serial transmit (TX) and receive (RX) lines, the programmer lets you use A and B as serial handshaking lines that can be configured using our software.

The six pins on the serial header (GND, A, VCC, TX, RX, and B) are arranged to be similar to the pinout of commonly-available FTDI USB-to-serial cables and breakout boards. In the default configuration, pin B is used as the DTR output (and pin A is an unused input), which allows you to plug the programmer directly into a variety of Arduino-compatible boards and use it to upload programs to the board via a serial bootloader.

 

Included accessories

The Pololu USB AVR Programmer v2.1 ships fully assembled with ISP and serial connectors soldered in.

 

Pololu USB AVR Programmer Documents

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