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Adafruit Metro ESP32-S2 開發板 (ada4775)
影片參考（2020/10/21新品 7:07開始）: https://youtu.be/Qtiq8K_hC6I
Description
What's Metro shaped and has an ESP32-S2 WiFi module? What has a STEMMA QT connector for I2C devices, and a Lipoly charger circuit? What has your favorite Espressif WiFi microcontroller and lots of memory for your next IoT project?／什麼是 Metro 形狀並具有 ESP32-S2 WiFi 模組？什麼具有用於 I2C 設備的 STEMMA QT 連接器和 Lipoly 充電器電路？您最喜歡的 Espressif WiFi 微控制器和大量記憶體適合您的下一個 IoT 專案嗎？
That's right - its the new Adafruit Metro ESP32-S2! With native USB and a load of PSRAM this board is perfect for use with CircuitPython or Arduino, to add low-cost WiFi while keeping shield-compatibility.
The ESP32-S2 is a highly-integrated, low-power, 2.4 GHz Wi-Fi System-on-Chip (SoC) solution that now has built-in native USB as well as some other interesting new technologies like Time of Flight distance measurements. With its state-of-the-art power and RF performance, this SoC is an ideal choice for a wide variety of application scenarios relating to the Internet of Things (IoT), wearable electronics, and smart homes.／ESP32-S2 是一款高度整合、低功耗、2.4 GHz Wi-Fi 系統單晶片 (SoC) 解決方案，現在具有 內建本機 USB 以及一些其他有趣的新技術，例如飛行時間距離測量。憑藉其最先進的功率和射頻性能，該 SoC 是與物聯網 (IoT)、 可穿戴電子產品和智慧家庭相關的各種應用場景的理想選擇。
Please note the Metro ESP32-S2 has a single-core 240 MHz chip so it won't be as fast as ESP32's with dual-core. Also, there is no Bluetooth support. However, we are super excited about the ESP32-S2's native USB which unlocks a lot of capabilities for advanced interfacing! This WROVER module we are using on the Metro comes with 4 MB flash and 2 MB PSRAM.／請注意， Metro ESP32-S2 採用單核心 240 MHz 晶片，因此其速度不如雙核心 ESP32。此外，不支援藍牙。然而，我們對 ESP32-S2 的原生 USB 感到非常興奮，它解鎖了許多高級介面功能！我們在 Metro 上使用的 WROVER 模組配有 4 MB 快閃記憶體和 2 MB PSRAM。
【Features】:
- ESP32-S2 240MHz Tensilica processor - the next generation of ESP32, now with native USB so it can act like a keyboard/mouse, MIDI device, disk drive, etc!
- WROVER module has FCC/CE certification and comes with 4 MByte of Flash and 2 MByte of PSRAM - you can have huge data buffers
- Lotsa power options - 6-12VDC barrel jack or USB type C or Lipoly battery
- Built-in battery charging when powered over DC or USB
- Precision battery monitoring via MAX17048 on I2C
- UNO-shape so shields can plug in
- Reset and DFU (BOOT0) buttons to get into the ROM bootloader (which is a USB serial port so you don't need a separate cable!)
- Serial debug pins (optional, for checking the hardware serial debug console)
- JTAG pads for advanced debugging access.
- On/Off switch
- STEMMA QT connector for I2C devices
- On/Charge/User LEDs + status NeoPixel
- Works with Arduino or CircuitPython
- 53.2mm x 72mm / 2" x 2.8"
- Height (w/ barrel jack): 14.8mm / 0.6"
- Weight: 22.5g
〔TECHNICAL DETAILS〕
修訂記錄： 2023/04 /18 我們新增了直角 Boot0 按鈕,晶片改為 MAX17048
Revision History: As of April 18, 2023 - We added a right-angle Boot0 button so it's easier to press. We also changed the battery monitor chip from using a resistor divider (which worked OK but did not have great voltage precision) to the MAX17048 dedicated LiPoly monitor.
相關文件
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