Pseudonymous electronics designer “Maker and IoT Concepts” has constructed a growth board based mostly on the Microchip ATtiny1616 microcontroller and boasting CAN bus help — as a jumping-off level for automotive experimentation.
“A short time in the past, I began alternate options to the ATmega328P (the chip utilized in the usual Arduino UNO). That experiment turned out fairly effectively, with two of the three chips turning out to be helpful, the ATtiny1616 and the ATmega4808. [Now I am] including devoted CAN bus help to the 1616 and 8408. I’m planning so as to add some devices to my automotive, and want to have it managed by a CAN bus interface, and, simply perhaps, interfacing with the CAN bus on the automotive as effectively — no less than sooner or later.”
This compact devboard provides CAN bus help to a Microchip ATtiny1616 microcontroller. (📷: Maker and IoT Concepts)
The plan, then: the event of a pair of microcontroller boards with built-in CAN bus help, beginning with one constructed on the low-cost Microchip ATtiny1616 microcontroller. To this, Maker and IoT Concepts added an Microchip MCP2515 CAN bus controller, the ATtiny1616 missing any such performance in itself, and an NXP TJA1050 CAN bus transceiver — each of which dwarf the tiny ATtiny1616.
“These chips, whereas previous, are nonetheless straightforward to pay money for,” the maker explains, “and I’ve fairly a couple of of them mendacity round from earlier tasks. It did thus appear to be a superb start line. The truth that their libraries additionally works completely with the ATtiny1616 and ATmega4808 additionally went a great distance in the direction of deciding on them for the venture.”
The board’s creator has launched schematics, with an ATmega4808 variant within the works. (📷: Maker and IoT Concepts)
Utilizing an earlier QFN-chip breakout as a jumping-off level, Maker and IoT Concepts designed a brand new board which incorporates each the microcontroller and the CAN bus parts — bringing the CAN alerts out to a screw header on the rear of the board, to ease connection and disconnection throughout experimentation. Lacking from the design, although, is any type of USB connectivity; as a substitute, the maker packages the microcontroller — utilizing Garry Fowler’s MCP CAN Library — by a selfmade UPDI programmer.
The complete venture write-up is offered on the Maker and IoT Concepts web site, together with schematics for the board.
