# ESP DC1: investigating and replacing Phicomm DC1 firmware > ESP DC1 provides replacement firmware for the Phicomm DC1 power strip after its original app service became unavailable. The project credits original-firmware extraction, PCB photographs and U7 logic analysis; its firmware provides web setup, MQTT control, electrical measurements and overload protection. - Type: Case study - Targets: Firmware - Category: Independent reconstruction cases - Relationship: Independent reconstruction project - Sources reviewed: 2026-11-09 - Added to the catalog: 2026-11-09 - Original resource: - Primary source: - Catalog page: - Record JSON: - Chinese version: [简体中文](https://awesomerea.org/zh/resources/esp-dc1-power-strip-case/index.md) ## Requirements & limits - **Prerequisites:** A Phicomm DC1 power strip and a TTL flashing connection are needed for installation. - **Prerequisites:** Visual Studio Code and PlatformIO are the documented build environment. - **Limits:** Voltage, current and power readings carry no stated accuracy. - **License:** GPL-2.0. ## Primary sources 1. ## More in Firmware and hardware - [fdsboot: Famicom Disk System boot ROM disassembly](https://awesomerea.org/resources/fdsboot-case/index.md) · Case study - [gyx-decomp: Casio ES PLUS GYX firmware decompilation](https://awesomerea.org/resources/gyx-decomp-case/index.md) · Case study - [vmiv: View-Master Interactive Video emulator and format notes](https://awesomerea.org/resources/vmiv-case/index.md) · Case study - [Binwalk](https://awesomerea.org/resources/binwalk/index.md) · Tool - [unblob](https://awesomerea.org/resources/unblob/index.md) · Tool - [Ghidra Firmware Utilities](https://awesomerea.org/resources/ghidra-firmware-utils/index.md) · Tool ## 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.