The datasheet of the L04 is available as a PDF File.
The pinout of the L04 is available as a PDF File
The drawings for the L04 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.
Here are some basic power usage measurements for various scenarios.
Tutorials on the L04 module can be found in the examples section of this documentation. The following tutorials might be of interest for those using the L04: