# Traces to JP2 and JP3 are wrong ## Problem environment UART connections connect half duplex signals over crossed traces, meaning a host transmits over a TX trace connected to the RX trace of a device. ## Steps to reproduce 1. Observe the schematic design 1. Search the JP2/JP3 connectors 1. Observe UART_TX and GPIO14/TXD ## Expected result * UART_RX connects with **GPIO14/TXD**. * **UART_TX** connects with GPIO15/RXD. ## Actual result * UART_RX connects with GPIO15/RXD. * **UART_TX** connects with **GPIO14/TXD**. ## Workaround The jumper layout specifies a male header, allowing to cross the connection appropriately using breadboard female wires. ## Severity level This is **high priority** because we expect most users to use the serial connection extensively.

Resolved in 8e36a89.