> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt # Seeeduino V4.2(ATMega328P) **Type:** Product page · **SKU:** SS102010026 · **Brand:** [Seeed Studio](https://core-electronics.com.au/brands/seeed-studio-australia) **Page:** https://core-electronics.com.au/seeeduino-v4-2-atmega328p.html ([markdown](https://core-electronics.com.au/seeeduino-v4-2-atmega328p.html.md)) Seeeduino V4.2 is an Arduino-compatible board, which is based on ATmega328P MCU, Arduino UNO bootloader, and with an ATMEGA16U2 as a UART-to-USB converter. The three on-board Grove interface can make your board connect to over 300 Grove modules. ## Pricing - **Price:** $19.40 (inc GST) — $17.64 AUD, exc GST - **Quantity discounts:** 10+ $16.93 (exc GST) · 25+ $16.40 (exc GST) ## Availability & dispatch - Available with a lead time — expect dispatch between Sep 07 and Sep 07. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=SS102010026:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart. - **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/SS102010026:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.) - **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there. - **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works) - **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt ## Description Seeeduino V4.2 is an Arduino-compatible board, which is based on ATmega328P MCU, Arduino UNO bootloader, and with an ATMEGA16U2 as a UART-to-USB converter. The three on-board Grove interface can make your board connect to over 300 Grove modules. Seeeduino V4.2 is an Arduino-compatible board, which is based on ATmga328P MCU. There're so many Arduinos and Arduino-compatible boards in the world, and we think that Seeeduino V4.2 is one of the best Arduinos, Seeeduino V4.2 is much more stable, easy-to-use and even good looking. Seeeduino V4.2 is based on the Arduino UNO bootloader, and with an ATMEGA16U2 as a UART-to-USB converter, which means that the board can basically work like an FTDI chip. You can program the board via a micro-USB cable. Also, you can power the board via a DC Jack input, 7 to 15V is acceptable. There's a switch to choose the system supply voltage, 3.3V or 5V, which is very useful if you want to set the system to 3.3V to save power. We have dedicated our time to help you get started with this sensor quickly and easily. Try the example code to quickly get started with clear codes. Finally, the three on-board Grove interface can make your board easily connect to the Grove modules. **Features** - ATmega328P microcontroller - Arduino UNO bootloader - 14 Digital I/O Pins (6 PWM outputs) - 6 Analog Inputs - ISP Header - Arduino UNO-R3 Shield Compatible - Micro USB programming and power supply - 3 on-board Grove connectors - 3.3/5V system operation power switch **Attention** Operating the chip at 16 MHz with 3.3 volts is beyond the specified maximum frequency "Safe Operating Area" for the ATmga328P chip. So when you switch the working voltage to 3.3V, it may not be safe. However, at room temperature, most chips work fine that way. **What is Grove** Grove makes it easier to connect, experiment, and simplify the prototyping process. No jumpers or soldering required. We have developed more than 300 Grove modules, covering a wide range of applications that can fulfill a variety of needs. Not only are these open hardware, but we also have open-source software. Still feel confused about what is “Arduino” or what it exactly means? Check the[ comprehensive Arduino guide](https://www.seeedstudio.com/blog/2019/12/04/introduction-to-the-arduino-what-is-arduino/), then you will learn all about the Arduino from: - Introduction to Arduino – What is it? - What can the Arduino do? - Why use the Arduino? - What is the difference between an Arduino and a Single Board Computer? - Arduino Hardware - Arduino Software - Types of Arduino - Getting started with the Arduino – What do you need? - Other helpful resources **Technical details** - Dimensions 115mm x78mm x25mm - Weight G.W 41g - Battery Exclude - 3 on-board Grove connectors - DC Current per I/O Pin 40 mA - DC Jack Input 7v-12v - Flash Memory 32 KB - RAM 2 KB - EEPROM 1 KB - Clock Speed 16 MHz ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/h/t/httpsstatics3.seeedstudio.comimagesproduct102010026201.jpg)