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Arduino has announced a new line of Nano cards that will be available next month. From the flea design through the features of the table, through the price, there are many novelties here. I stopped at their booth at Make Bay Area Maker to take a look at the equipment.
The new design of the pins located on both sides of the board, which went from a through hole to a crenellated hybrid, is immediately noticeable. The cards can be ordered with or without solder pin heads in place. If you get them without, you can redistribute these nano cards as modules on a larger circuit board. The recommended fingerprints are not yet available, but I am told that they will be published soon.
The most basic model of this range is the "Nano Every", a 5V card with the ATmega4809 in its center. This brings 48 KB of flash memory and 6 KB of RAM to the party, running at 20 Mhz. A very good idea is the inclusion of a power regulation to adjust up to 21V input in the regulated 5V for the chip, with the added benefit of providing up to 1A for components external inputs via the 5 V pin of one of the headers. . For hackers, you can choose to inject your unregulated power supply via the VIN line or the USB header.
All this is a really interesting upgrade to the previously available Nano design, priced at $ 9.90, making it a truly desirable card for your 8-bit microcontroller needs. The only criticism that comes to my mind is that the pins are well labeled on the lower silk screen, but I would have liked to see those labels on the top layer as well. When they are used in a breadboard or soldered on another circuit board, the pin tags are masked.
The rest of the Nano family is focused on more powerful chips. As mentioned above, the "Nano Every" card uses an 8-bit 5V chip, but the three different "Nano 33" cards have 32-bit chips at 3.3V. There is an "IoT" version with a Cortex arm- M0 + SAMD21 processor, IMU 6 axis, plus a NINA-W10 uBlox module which is an ESP32 card for WiFi, Bluetooth and cryptography functions. The MSRP on this chart is $ 18.
The "Nano 33 BLE" and "Nano 33 BLE Sense" cards remove the SAMD21 chip and use the Nordic nRF52480, part of the NINA-B306 uBlox modules, and provide Bluetooth connectivity. At $ 19, the BLE flavor gives you a 9-axis accelerometer. For ten dollars more, the "BLE Sense" adds a series of sensors: pressure, humidity, digital proximity, ambient light, gesture sensor and microphone. Pre-orders for these two devices should begin shipping in July.
The new Arduino Nano models bring a lot of power to a small footprint. I wonder if Arduino is trying to compete with the ESP32 modules. The crenelated edges of the ESP32 modules allowed them to appear in all kinds of development boards and other products. The new Nano design continues the legacy of the Arduino boards compatible with the prototypes, but adds the ability to include the cards in a product design based on a surface mount.
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