Adafruit METRO 328 with Headers - ATmega328
18,02 €
Card with ATmega328 microcontroller, powered by USB or DC jack at 7-9V (equipped with on / off switch). It features 20 GPIO pins, 6 can be used as analog inputs and 6 as PWM output. It has hardware ports for SPI, I2C and UART. 16MHz clock speed. The logic level of the GPIO ports is 5V, but it is easily convertible by cutting and soldering a jumper. Equipped with a FTDI USB-serial converter that allows you to use a serial monitor from your PC to send and receive data and to program the ATmega via USB, thanks to the pre-loaded Optiboot bootloader. There are 4 LEDs, one for power on, two on the RX / TX channels for the UART and one on digital pin 13 (PB5). Version with headers, we also have some with headers to be welded.
- Description
- Product information
Description
We sure love the ATmega328 here at Adafruit, and we use them a lot for our own projects. The processor has plenty of GPIO, Analog inputs, hardware UART SPI and I2C, timers and PWM galore - just enough for most simple projects. When we need to go small, we use a Pro Trinket 3V or 5V, but when size isn't as much of a concern, and an USB-serial converter is required, we reach for an Adafruit METRO.
This is the Adafruit METRO with headers. It comes with headers soldered on. It's a fully assembled and tested board with SMT headers attached as well as through hole headers. If you don't want a Metro with through-hole headers or at least, holes for them, but not attached for super-slimness, check out our Metro without Headers.
METRO is the culmination of years of playing with AVRs: we wanted to make a development boardhat it is easy to use and is hacker friendly. At the heart is an ATmega328P, with 32KB of flash and 2KB of RAM, running at 16 MHz
Power the METRO with 7-9V polarity protected DC or the micro USB connector to any 5V USB source. The 2.1mm DC jack has an on / off switch next to it so you can turn off your setup easily. The METRO will automagically switch between USB and DC.
METRO has 19 GPIO pins, 6 of which are Analog in as well, and 2 of which are reserved for the USB-serial converter. There's also 6 PWMs available on 3 timers (1 x 16-bit, 2 x 8-bit). There's a hardware SPI port, hardware I2C port and hardware UART to USB. Logic level is 5V but by cutting and soldering closed a jumper, you can easily convert it to 3.3V logic
USB to Serial converter, there's a hardware USB to Serial converter that can be used by any computer to listen / send data to the METRO, and can also be used to launch and update code via the bootloader
Four indicator LEDs, on the front edge of the PCB, for easy debugging. One green power LED, two RX / TX LEDs for the UART, and a red LED connected to pin PB5
Easy reprogramming, comes pre-loaded with the Optiboot bootloader, which is supported by avrdude and only uses 512 bytes.
Works with all Adafruit shields!
We also include 4 rubber bumpers to keep it from slipping off your desk. Metro shown with our 12x capacitive touch shield attached just to demonstrate the headers, but that shield is not included!
Product information
| Weight | 0,05 kg |
|---|---|
| Length | 5x1x3 cm |
| BRAND | Adafruit |
