I have tested all PCB electronics, and everything is forking fine, so I can start to program MCU.

I have working code for my previous lidar - it was based on STM32F100 and TSL1401.

So I take code from that project and ported it to new STM32F030 MCU.

At first step I write testing firmware that capture analog signal from sensor to MCU memory and then transfer it PC by UART.

I write PC utility that draw illumination level of 128 sensor's pixels:

Here is a picture with IR laser that I want to use in final design:

The distance to object (white wall) was near 1.8 m.

The next step is printing laser holder and mounting it at PCB.