• Adafruit bq24074 solar charger
• Design Notes MPPT
• Adafruit bq24074 downloads incl. schematics
• TI datasheet BQ2407x Standalone 1-Cell 1.5-A Linear Battery Chargers with Power Path
• TI datasheet LP3869x/-Q1 500-mA Low-Dropout

• https://marksbench.com/electronics/esp32-cam-low-power-trail-camera/

He uses a FET as a low side current switch to switch the GND of the ESP32-Cam. The FET is triggered by a PIR sensor which keeps its output high for 2 seconds in case of motion.

• Random Nerd Tutorial on ESP32-Cam
• https://randomnerdtutorials.com/esp32-cam-take-photo-display-web-server/

• Main Wiki Page: Getting Started with Seeed Studio XIAO ESP32S3 (Sense)
  At the bottom of this wiki page are the link to the design resources.
• Pin Multiplexing with Seeed Studio XIAO ESP32S3 (Sense)
• File System and XIAO ESP32S3 Sense

• Product Page: Seeed Studio XIAO ESP32S3

• XIAO ESP32S3 V1.1 Schematic
• XIAO ESP32C3 Schematic
• XIAO_ESP32S3_ExpBoard_v1.0_SCH.pdf

• The Inside Story of XIAO ESP32S3 Designing

• Marcelo Rovai's git repo
• MJRoBot.org (Marcelo Rovai)
• ESP32-CAM: TinyML Image Classification - Fruits vs Veggies

• SGM6029 Ultra-Low Quiescent Current, Synchronous Buck Converter, 3V3
• SGM40567 Small Capacity Compact Battery Charger for Loosely Coupled Wireless Charging/Solar Charging
• LDOs for cam: https://www.sg-micro.com/show-product-502.html