20/06/2018 PRC Store Reset Signal WIZ820io requires a reset pulse to function properly. WIZ850io is more tolerant of startup without reset, but a pulse on the reset pin is absolutely required for the older W1Z820io modules. This adapter has a CATBOAT reset chip to automatically pulse reset at power up. However, after uploading a new program, your WIZ820io may be left in a prior state depending on where your prior program stopped.
0/06/2018 PRC Store Solder the 28 header pins to the WIZ820_SD_ADAPTOR. Le Solder the 12 WIZ820io pin to the WIZ820_SD_ADAPTOR. Optionally, the WIZ820io pins can be placed into sockets and the sockets soldered to the WIZ820_SD_ADAPTOR, to allow the WIZ820io to be removed.
20/06/2018 PRC Store Solder the 28 header pins fo Weensy 3.x. Optionally, the header pins can be placed into caskets and the sockets soldered to the Weensy 3.x.
20/06/2018 PRC Store This table lists the electrical connections on this adapter board. The WIZ820io and SD card are connected to the default pins used by the Arduino Theme and SD libraries. For the SD library, pin 4 should be used in the begin() function. WIZB20io0 MCP1825 JUMPER PADS Left Side MISDO SILK 1:IN VIN33,VIN33 3:0UT INDIGNANT ~~ Right Side PWN Center By default, the center and right side of the jumper pads are connected, which keeps the WIZ820io powered up.
