PiCAN3 CAN Bus HAT for Raspberry Pi 4 with 3A Power Supply And Real-Time Clock
Copperhill Technologies announced the release of its PiCAN3 CAN-Bus Board for the Raspberry Pi 4, adding Controller Area Network capabilities plus a real-time clock to the new Raspberry CPU.
By: Copperhill Technologies Corp.
There is an easy-to-install SocketCAN driver, and programming can be accomplished in C or Python.
The onboard PCF8523 is a CMOS Real-Time Clock (RTC) and calendar chip optimized for low power consumption. Data is transferred serially via the I²C-bus with a maximum data rate of 1000 kbit/s. Alarm and timer functions are accessible with the opportunity to produce a wake-up signal on an interrupt pin. An offset register allows fine-tuning of the clock. The PCF8523 has a backup battery switch-over circuit, which detects power failures and automatically switches to the battery supply when a power failure occurs.
The Switch Mode Power Supply (SMPS) allows connecting an input voltage range of 6 VDC to 20 VDC, making the board suitable for industrial and automotive applications and environments. The SMPS powers the Raspberry Pi plus PICAN3 and eliminates the need for a Micro-USB power supply.