# Hermes > Hermes is a Flipper Zero app for identifying unknown UART settings and inspecting a device's serial console. It timestamps line edges to estimate bit time, checks candidate rates and parity against received UART bytes, then offers a terminal with text, hex and capture features. The source states that detection leaves the transmit pin undriven until the user sends data. - Type: Tool - Targets: Protocol - Category: Protocol analysis tools - Relationship: Foundation tool - Sources reviewed: 2026-11-06 - Added to the catalog: 2026-11-06 - Original resource: - Primary source: - Catalog page: - Record JSON: - Chinese version: [简体中文](https://awesomerea.org/zh/resources/hermes-flipperzero/index.md) ## Requirements & limits - **Prerequisites:** Flipper Zero and access to the target device's UART line. - **Limits:** The source says edge timing cannot follow edges beyond roughly 230400 baud; the UART sweep needs traffic during its sampling window. - **License:** MIT license. ## Primary sources 1. ## More in Protocols - [RoflLens](https://awesomerea.org/resources/rofllens/index.md) · Tool - [open-appleremote: Siri Remote protocol reconstruction](https://awesomerea.org/resources/open-appleremote-case/index.md) · Case study - [GAMEKB-K17: reconstructing a macropad configuration protocol](https://awesomerea.org/resources/gamekb-k17-case/index.md) · Case study - [cooler-lcd: a Thermalright display protocol implementation](https://awesomerea.org/resources/cooler-lcd-case/index.md) · Case study - [NJFE: a Soulear camera protocol bridge for desktop inspection](https://awesomerea.org/resources/njfe-ear-camera-bridge-case/index.md) · Case study - [hw-harness: scanner USB protocol investigation](https://awesomerea.org/resources/hw-harness-reference-case/index.md) · Case study ## About this entry The description was reviewed against primary sources. Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.