SOLO Communication Manual - UART and USB
www.solomotorcontrollers.com
September 2021 - Revision V_1.0.1 Copyright © 2021, All right Reversed. SOLO motor controllers.
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UART and USB Access points on SOLO MINI:
SOLO MINI, similar to SOLO UNO offers the exact same connectivity for UART and USB
communications as shown below in Figure 2 both through its “I/O Port” as well as the
“Communication Port”.
Figure 2- UART and USB access points on SOLO MINI
- UART TX is not +5V tolerant on SOLO MINI, as it’s an output pin with signal leveled at
3.3V which is compatible with all Arduino and Raspberry Pi modules, connection of this
pin to +5V rated signals will damage the device.
- UART RX is +5V tolerant and it can be fed with signals both leveled at 3.3V or +5V.
- As can be seen in the communication port, Pins 17 and 19 are the TX and RX pins of UART
respectively and they have the exact same functionality and ratings as UART_RX and UART_TX
pins in “UART/CAN bus Pinout”
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