Explore ESP32-Pico-D4 a new chip by Espressif

Now the camera board is resized almost half of original one. The new board is "double decker" form, where USB interface for binary uploading settles in lower deck (indeed, it is useless once binary is uploaded). The size is quite tiny but it can work completely standalone with Lipo battery controller.

For binary uploading lower deck is connected as above picture.

Actual operation can be found in the following movie....! (iOS's MJPEG viewer is "IP Camera Lite" free version.)

This time I just changed CMOS sensor from OV7725 to OV2640, and I've confirmed that wonderful implementation by igrr
https://github.com/igrr/esp32-cam-demo
already supporting STREAMING VIDEO !!! Actual operation can be seen in the following movie... Thank you igrr for wonderful implementation!!!

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A simple tiny all-in-one board by ESP32-PICO-D4 is made.

Now the size is almost comparable with Espressif's genuine module? but it contains

• USB-Serial (CP2102) with circuitry for binary upload
• Lipo charger
• Secret function on backside

Please check "secret function" on the backside of the board by following movie..!

I've found a wonderful project on GitHub

https://github.com/igrr/esp32-cam-demo

,which utilize ESP32 (not PICO) and ESP32-WROVER (senior brother of ESP32-WROOM32, which has larger SRAM) but I guessed it will work also on ESP32-PICO-D4 so I made....

The board with Camera and tiny OLED display (64x32 pixels, SSD1306). The test code can work as a standalone webcam and very useful for IP address indication.

As shown in the above test shot, not HD quality but enough to surveillance or some data acquisition applications...

Actual operation is already presented in the following movie... Have fun!

I've made Eagle library for ESP32-PICO-D4 and enjoying designing. Here I've uploaded the file which I've made (modified) and used for PCB design.

Eagle library is now uploaded to my GitHub account:
https://github.com/kodera2t/Motor_driver_sample
in which cypresspsoc_0.30.lbr contains ESP32-PICO-D4 footprint by the name of "CY8C29666_QFN48" This is very quick made and just modified from original PSoC library so please rename the file name  if you have already used one.

One tindie buyer requested me to share Eagle library and actually I have no reason to refuse!! Enjoy ESP32-PICO-D4!!