About Huiyang Embedded

Leo, Beijing. Fifteen years on embedded products. Complete PCB projects, and firmware written to live on the same board.

Huiyang Embedded is the public brand of Beijing Huiyang Technology Co., Ltd. (北京蕙杨科技有限公司), a Beijing lab. We are not Espressif Systems. ESP32 is Espressif’s chip family; this site is an independent ESP32 hardware-landing practice.

The work starts with a complete ESP32 PCB project in Altium — schematic, layout, BOM, Gerber — and ESP-IDF firmware written here: Wi-Fi / BLE, IMU, GNSS, TFT, SD, OTA, multi-board UART. DFM review, first bring-up, and a repeatable flash-and-test path follow. Public project pages are readings of Espressif official examples so you can judge an architecture before you freeze a PCB.

Leo has designed PCB projects and written firmware for fifteen years, across industrial, consumer, wearable and connected devices. The part that actually ships is when the structure, the schematic and the firmware agree. That is the work.

This is a specialist lab, not a chip vendor, not a training school, and not a high-volume SMT factory. Certification lab filing (FCC / CE) and enclosure tooling are separate steps. Technical exchange is welcome even when there is no purchase order.

What this lab designs and writes

Taken from boards and firmware already built here. Say which of these you need.

Hardware we design

  • Complete schematic and PCB in Altium: MCU, power, sensors, RF keep-out, BOM and Gerber ready to order
  • Motion and heading: IMU and magnetometer; GNSS on UART
  • Keys, LEDs, buzzer, vibrator, I2C GPIO expanders
  • SPI TFT (ST7789 class), SD / TF card, I2S speaker (MAX98357 class)
  • Wi-Fi / BLE module layout, and short-range radio on the same board
  • Wearable-class boards: battery, IMU, GNSS and keys on one PCB

Firmware we write

  • ESP-IDF on ESP32-S3 / C6 / C3, from first UART through product logic
  • Wi-Fi + BLE, including phone BluFi provisioning
  • I2C / SPI sensors, GNSS, PWM, GPIO power rails
  • On-device HTTP file server, SD card, TFT UI, keys, encoder, haptics
  • Multi-board UART: a master plus organ modules
  • OTA, NVS, power and sleep; I2S audio; HTTPS when the product talks to a cloud API

What you can ask us to do

  • Design a complete ESP32 schematic and PCB from a product note
  • Write the ESP-IDF firmware that has to run on that board
  • Add IMU, GNSS, display, SD, audio, Wi-Fi or BLE to the product
  • Review Gerber and BOM you already have
  • Bring up the first article and leave a flash-and-test path
  • Wire a controller board to satellite modules over UART

Facts you can check

  • Legal name: Beijing Huiyang Technology Co., Ltd. / 北京蕙杨科技有限公司
  • City: Beijing, China
  • Public brand: Huiyang Embedded / 蕙杨嵌入式
  • Public contact: Leo · WhatsApp +86 17052886709
  • Stack: ESP32 / S2 / S3 / C3 / C6 — complete PCB in Altium (schematic through Gerber) and ESP-IDF firmware written here
  • Packages: schematic/PCB design, DFM review, first bring-up, repeatable flash-and-test path

What this is not

  • Not Espressif Systems, not a semiconductor vendor, not a listed company
  • Not an ESP32 training school or a tutorial-only blog
  • Not a consumer gadget brand and not a high-volume SMT factory
  • Not an FCC / CE certification lab — we design with that in mind; the certificate is a separate step
  • Not an AWS / Azure cloud-platform vendor

Beijing Huiyang Technology Co., Ltd. · Huiyang Embedded

Talk to Leo

WhatsApp is the fastest path. Say what the board must do. If you only want a second pair of eyes on pins or sleep current, that is enough.

Leo · WhatsApp +86 17052886709

中文

关于蕙杨嵌入式

Leo，北京。嵌入式十五年。完整的 PCB 项目，以及写在同一块板上的固件。

蕙杨嵌入式是北京蕙杨科技有限公司的对外品牌，实验室在北京。我们不是乐鑫科技（Espressif Systems）。ESP32 是乐鑫的芯片系列；本站是独立的 ESP32 硬件落地实践。

工作从完整的 ESP32 PCB 项目开始——用 Altium 出原理图、布局、BOM、Gerber——以及在这里写的 ESP-IDF 固件：Wi-Fi / BLE、IMU、GNSS、TFT、SD、OTA、多板 UART。然后是可制造审查、第一次点亮、可重复的烧录测试路径。公开项目页是乐鑫官方案例的解读，方便你在定 PCB 之前先看懂一套架构。

Leo 做了十五年嵌入式，PCB 项目和固件都是自己做，工业、消费、可穿戴、联网设备都碰过。真正能出货的，是结构、原理图和固件能对上。这就是工作本身。

这是专项实验室，不是芯片厂，不是培训学校，也不是大规模 SMT 工厂。FCC / CE 送检出证和开模是另一步。没有采购单也可以技术交流。

这个实验室实际在画、在写的

从已经做过的板和固件里列出来。写信时直接说要哪几条。

硬件设计

  • 用 Altium 做完整原理图和 PCB：主控、电源、传感器、射频净空、BOM 和可下单 Gerber
  • 运动与航向：IMU、磁力计；UART 上的 GNSS
  • 按键、LED、蜂鸣器、马达振动、I2C 扩展 IO
  • SPI TFT（ST7789 一类）、SD / TF 卡、I2S 喇叭（MAX98357 一类）
  • Wi-Fi / BLE 模组布局，以及同一块板上的短距射频
  • 可穿戴一类：电池、IMU、GNSS、按键做在同一块 PCB

固件编写

  • ESP32-S3 / C6 / C3 上的 ESP-IDF，从第一次串口写到产品逻辑
  • Wi-Fi + BLE，含手机 BluFi 配网
  • I2C / SPI 传感器、GNSS、PWM、GPIO 电源轨
  • 板上 HTTP 文件服务、SD 卡、TFT 界面、按键、编码器、振动
  • 多板 UART：一块主控加若干外设模块
  • OTA、NVS、电源与休眠；I2S 音频；产品要连云时的 HTTPS 客户端

客户可以直接找我们做的

  • 从产品说明画完整的 ESP32 原理图和 PCB
  • 写这块板上要跑的 ESP-IDF 固件
  • 给产品加上 IMU、GNSS、屏、SD、音频、Wi-Fi 或 BLE
  • 审查你已有的 Gerber 和 BOM
  • 点亮首件，并留下可重复的烧录测试路径
  • 用 UART 把主控板和外设模块连成一套

可以核对的事实

  • 主体：北京蕙杨科技有限公司 / Beijing Huiyang Technology Co., Ltd.
  • 城市：中国北京
  • 对外品牌：蕙杨嵌入式 / Huiyang Embedded
  • 对外联系人：Leo · WhatsApp +86 17052886709
  • 栈：ESP32 / S2 / S3 / C3 / C6 — 用 Altium 做完整 PCB（原理图到 Gerber），ESP-IDF 固件在这里写
  • 套餐：原理图/PCB 设计、可制造审查、第一次点亮、可复现烧录测试路径

这不是什么

  • 不是乐鑫科技，不是半导体厂商，不是上市公司
  • 不是 ESP32 培训学校，也不是纯教程博客
  • 不是消费电子品牌，也不是大规模 SMT 工厂
  • 不是 FCC / CE 认证实验室——设计会按认证考虑，证书是另一步
  • 不是 AWS / Azure 云平台厂商

北京蕙杨科技有限公司

Leo · WhatsApp +86 17052886709