The datasheet of the W01 is available as a PDF File RCM
The pinout of the W01 is available as a PDF File
The drawings for the W01 are available as a PDF File
Please note that the PIN assignments for UART1 (TX1/RX1), SPI (CLK, MOSI, MISO) and I2C (SDA, SCL) are defaults and can be changed via software.
Tutorials on the W01 module can be found in the examples section of this documentation. The following tutorials might be of interest to those using the W01: