Liang Shan Pi expansion plate - thermal imaging

## Video Links: [Bilibili video--function demonstration and introduction\] \(【Liangshanpi Expansion Board-Thermal Imaging】](https://www.bilibili.com/video/BV1e3ULYhEQZ/?share_source=copy_web&vd_source=7014fe043273cb0d05f7f206d2eea00f) ## Project Brief Introduction This scheme is a reproduction of the "Liangshanpi Expansion Board-Thermal Imaging ([https://oshwhub.com/l1009184289/gui-hua-zhong](https://oshwhub.com/l1009184289/gui-hua-zhong))" project, and it is replaced with my common components, thanks to the original author for open source ## Project features Imaging image: false color 2 grayscale. Temperature display: MIN temperature on the upper left. MAX minimum temperature on the upper right Lower left sensor temperature Lower right ambient temperature Middle and lower center measure temperature ## Project parameters Input voltage: 5V Screen resolution: 240*320 Measurement frame rate: 1Hz-8Hz Display mode: color, gray Backlight brightness adjustment: 4 stops 25%-50%-75%-100% ## Hardware description The main control is used with the Liangshan Pi development board. The sensor is MLX90640 BAB. The screen uses a 2.4-inch 40P plug-in chip ST7899V screen. LTH7 for battery charging chip, the charging current is set by R2, the default is the charging current of 5k resistance 200MA, and the R2 resistance value can be replaced if the battery capacity is high.