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This is a shield to apply GROVE system device for ESPr Developer. It is a Switch Science original board, based on circuit designed by Mr. Shigeru Kobayashi from IAMAS.
4 connectors (2 digitals, 1 analog, 1 I2C) in total.
Power Voltage is 3.3 V. It can not be applied to device with just 5 V.
GROVE connector for digital input/output has two GPIOs assigned. D12 and D13 are connected to D12, D14 and D15 are connected to D14.
AnalogRead output level of some of the Analog GROVE module will not reach 1023 and will sustain at approx 970 for some reason. We are currently tracing the cause.
ESPr® Developer w/ female headers - ESP8266 development board SSCI-026529 (2652)
ESPr® Developer w/ female headers - ESP8266 development boardShipping Method: EMS Price: 20.77 USD
ESPr® Developer w/o header - ESP8266 developement board SSCI-025003 (2500)
ESP-WROOM-02 is a 32-bit low power micro-controller (MCU) Wi-Fi Module that integrates TCP/IP network stacks, and includes 10-bit ADC with HSPI, SDIO, UART, PWM, I2C, and I2S interfaces.The highlight of this board is an FT231X USB-to-Serial converter. That’s what translates data between your computer and ESP-WROOM-02.Shipping Method: EMS Price: 18.00 USD
ESPr® Developer w/o USB serial converter - ESP8266 development board SSCI-028059 (2805)
ESPr Developer without USB Serial converter IC (FT231XS). It's handy when you have completed developing on ESPr Developer and you need multiple use of ESPr Developer.Shipping Method: EMS Price: USD Not Selling (Yet)