Open Source Hardware IoT boards ESP32-EVB and ESP32-GATEWAY now are available in industrial grade -40+85C

esp32-gateway-gpios

ESP32-EVB and ESP32-GATEWAY are two very popular IoT boards which are supported both by Arduino IDE and Espressif SDK.

Now we stock ESP32-EVB-IND and ESP32-GATEWAY-IND which are functionally same boards, but all components used in them work in industrial temperature grade -40+85C.

ESP32-WROVER-DevKit-Lipo Open Source Hardware board with 4MB Flash and 8MB PSRAM is in stock

ESP32-WROVER-DevKit-Lipo

ESP32-WROVER-DevKit-LiPo is new open source hardware board which uses ESP32-WROVER modules with 4MB Flash and 8MB PSRAM.  It keeps same layout as ESP32-DevKit-C and ESP32-DevKit-Lipo, so boards made for these modules will work drop in.

The only difference between ESP32-WROOM and ESP32-WROVER modules beside the more RAM is that WROVER module has no GPIO16 and GPIO17 which are used internally and not connected to the outside pins.

ESP32-DevKit-LiPo Open Source Hardware board GPIOs table and power consumption testings – in deep sleep the board uses only 65 uA

ESP32-DevKit-LiPo-GPIOs

Our ESP32-DevKit-LiPo board is pin to pin compatible with Espressif ESP32-DevKit, but we add to it LiPo battery charger, so the board can operate from LiPo battery like BATTERY-LiPo1400mAh

High resolution of the above GPIO map is available here.

Having LiPo backup power supply allow WiFi/BLE connected handheld devices to be created with ESP32-DevKit-LiPo.

In our new Revision B of this board which is on prototype stage:

If PWR_SENS_E1 jumper is shorted your software can monitor if external power supply is attached or you work on battery.

If BAT_SEND_E1 jumper is shorted your software can read battery voltage.

When operating on battery low power is necessary, so we optimized the design of Revision. C to reduce power consumption as much as possible and here are the results:

ESP32-DevKit-LiPo powered by Li-Po battery (no LED)

  • normal mode: 35mA +/-10%
  • deep sleep mode: 0.065mA +/-10%

ESP32-DevKit-LiPo powered by 5V USB (LED up)

  • normal mode: 35mA +/-10%
  • deep sleep mode: 2mA +/-10%

 

ESP32-ADF SIP phone example is uploaded on GitHub

esp32-adf-sip3

ESP32-ADF Espressif Audio Framework demo board SIP phone example is on Guthub.

Sorry for the delay, but Espressif changes their ESP-IDF so frequently that we have to update this example again and again to follow their changes.

 

Dance radio project with ESP32-ADF 2.8″ LCD display with touchscreen and RGB LEDs disco lights!

Screenshot from 2020-03-11 13-05-57

ESP32-ADF is a ESP32 development board created for Espressif Audio Framework. It has an audio amplifier, stereo microphones and a build-in programmer.

We created an internet radio project and uploaded on GitHub.

To complete the project you need:

Here is the radio in action:

Unfortunately, it has weak bass sound since the speakers are not mounted in a box.

 

ESP32 new boards in stock

ESP32-PICO-KITb

Espressif never stop to surprise us with new products. Their new ESP32-PICO-D4 IC has build in 4MB SPI Flash and quartz crystal, antenna matching circuit, so this chip requires just 5 external resistors and capacitors to work! If your design has to be small this is the chip for you!

ESP32-PICO-KIT is low cost development board for this new chip and has build in USB serial programmer, antenna and breadboard friendly DIL header connectors at 0.1″ step.

ESP32-CAM-F

ESP32-CAM is WiFi IP camera with OV2640 2 Mpix sensor it works with internal PCB antenna and needs just 3.3V external power supply to  operate. You also have SD-card connector and GPIOs to which you can connect PIR sensors and other components to control.

There is Arduino support for this board and tons of interesting projects like face recognition, motion detectors with storage of the pictures on the SD card and etc.

Here are few of them:

We also got ESP32-CAM-UFL which is same board but with U.FL connector where you can connect external antennas.

ESP32-CAM-ANT1

ESP32-CAM-EA is ESP32-CAM with small external WiFi/BT antenna which increased the WiFi coverage.

ESP32-CAM-ANT2

If you need more coverage we have ESP32-CAM-EAX which has higher gain antenna, but with quite bigger size.

ESP32-ADF based SIP Phone looks really cool with LittlevGL

esp32-adf-sip1

We blogged a while ago about one of the demo code we work on for ESP32-ADF – SIP IP phone. Our vacation delay a bit this project, but now it’s almost ready and we want to share some details.

We used LittlevGL framework for the UI. You can see on the picture above how the phone app looks on the LCD.

LittlevGL required some touching as default didn’t work well with the touch screen, but we managed to add support, the touch panel recognize gestures like slide, tap etc.

esp32-adf-sip3

We need few more days to finish dialing sounds etc details and will upload on GitHub our patches for LittlevGL and our SIP IP phone demo.

We are so impressed with the result that we may release soon all in one LCD+ESP32-ADF and camera so we enhance the phone with camera and open more applications like Home automation WiFi Door-Phone, security panel with sound and video and other apps based on this configuration.

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