Microchip PAC1934 - ADM00805 與 Arduino 通訊

ADM00805評估板

ADM00805具有USB連接器，用於連接到電腦進行裝置通訊。給PAC1934裝置供電有兩種方式：

一是透過USB連接器直接由VBUS供電，

二是透過VDD的外部連接供電。
利用板上MCP2221 USB轉I2C橋接器，可透過USB提供I2C通訊。

另外還有一個連接器，透過此連接器可以將VDD_IO、接地、SDA和SCL連接到PC主機板或Linux系統等外部源，可直接實現I2C通訊。有關使用直接I2C連接的重要詳細信息

Microchip_PAC193x Arduino_Library

The PAC1934 is a four channel power/energy monitor with current sensor amplifier and bus voltage monitors that feed high resolution ADCs.  Digital circuitry performs power calculations and energy accumulation.  The PAC1934 enables energy monitoring with integration periods from 1 ms to up to 36 hours.  Bus voltage, sense resistor voltage, and accumulated proportional power are stored in registers for retrieval by the system master or embedded controller. This library supports all the 4 channels on the PAC1934.  Source: http://ww1.microchip.com/downloads/en/DeviceDoc/PAC193x_Arduino_Library_v1_0_0.zip

透過Arduino的I2C與ADM00805連接去量測電壓與電流

將上述連結的Arduino Library 的Microchip_PAC193x sample upload 到Mega2560板子上就可以看到輸出了!!