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MakerFocus ESP32 Development Board Upgraded Version 8MB Flash, ESP32 WiFi...

Amazon.com Price:  $18.99 (as of 05/11/2021 08:39 PST- Details) & FREE Shipping. Details

[Full documentation]: https://drive.google.com/file/d/1_P9HP9dKquaM_gGJa4mBdF9D2Kwx_v6s/view?usp=sharing; [Note]: This ESP32 development board comes unassembled, soldering of headers is required!!★ It can lithium battery powered, the lithium battery is not included, battery may be purchased here: https://www.amazon.com/dp/B07CXNQ3ZR
★Add battery power detection circuit. Use ADC2_4 (GPIO 13) to read battery voltage, Please get the example link from the product description below
[This is an upgraded version WiFi Kit 32! ] What’s the Upgrade of New WiFi Kit 32? 1. 4MB (32M-bits) FLASH upgrade to 8MB (64M-bits) FLASH; 2. Better 2.4GHz antenna design and impendence matching; 3. Basic low power design (800uA in deep sleep); 4. Add battery power detection circuit. Use ADC2_4 (GPIO 13) to read battery voltage. Please get the example link from the product description below

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Description

 

Description:
[This is an upgraded version of WiFi Kit 32! ]
What’s the Upgrade of New WiFi Kit 32?
1. 4MB (32M-bits) FLASH upgrade to 8MB (64M-bits) FLASH;
2. Better 2.4GHz antenna design and impendence matching;
3. Basic low power design (800uA in deep sleep);
4. Add a battery power detection circuit.
Use ADC2_4 (GPIO 13) to read battery voltage.

Please refer to this example:

https://github.com/HelTecAutomation/Heltec_ESP32/blob/master/examples/ESP32/ADC_Read_Voltage/Battery_power/Battery_power.ino

WIFI Kit series is the new development of the cost-effective networking program, the main chip using Lexin ESP32, Tensilica LX6 dual-core processor, 240MHz, computing power up to 600DMIPS, chip built-in 520 KB SRAM, 802.11 b / g / N HT40 Wi-Fi transceiver, baseband, protocol stack, and LWIP, integrated dual-mode Bluetooth (traditional Bluetooth and BLE low power Bluetooth).
Onboard 8MByte(64M-bit) Flash, Wi-Fi antenna, 0.96-inch blue OLED display, lithium battery charging circuit and interface, CP2102 USB to serial chip, the perfect support for Arduino development environment

Specification:

Operating voltage: 3.3V to 7V
Operating temperature range: -40 ° C to + 90 ° C
Data rate: 150 Mbps 11n HT40,72 Mbps 11n HT20,54 Mbps 11g, 11 Mbps 11b
Transmit power: 19.5 dBm 11b, 16.5 dBm 11g, 15.5 dBm 11n
Flash Size: 8MByte(64M-bit)
Module Size: 50×25.4×10.3 mm
Lithium battery interface:2Pin-1.25mm interface
Receiver sensitivity up to – 98 dBm
UDP continues to throughput by 135 Mbps
Supports Sniffer, Station, soft AP, and Wi-Fi Direct modes

Package Includes:

  1.  ESP32 Development Board with OLED
  2. Pin headers [Full documentation]: https://drive.google.com/file/d/1_P9HP9dKquaM_gGJa4mBdF9D2Kwx_v6s/view?usp=sharing
  3. It can be lithium battery-powered, the lithium battery is not included, the battery may be purchased here: https://uphoto.com/index.php/product/4pcs-3-7v-1100mah-lithium-rechargable-battery-1s-3c-lipo-battery-with-protection-board-insulated-rubber-tape-and-micro-jst-1-25-plug-for-ar-duino-nodemcu-esp32-development-board/
  4. Add a battery power detection circuit. Use ADC2_4 (GPIO 13) to read battery voltage, Please get the example link from the product description below [This is an upgraded version of the WiFi Kit 32! ] What’s the Upgrade of New WiFi Kit 32? 1. 4MB (32M-bits) FLASH upgrade to 8MB (64M-bits) FLASH; 2. Better 2.4GHz antenna design and impendence matching; 3. Basic low power design (800uA in deep sleep); 4. Add battery power detection circuit. Use ADC2_4 (GPIO 13) to read battery voltage. Please get the example link from the product description below.
  5. Add Vext power output pin, users can use this pin to drive some external device (sensor, motor, etc.), when the system needs to go into deep sleep mode, Vext can be turned off. This pin was controlled by GPIO21, for example: Turn ON: digitalWrite(21, LOW); Turn OFF: digitalWrite(21, HIGH)
  6. New WiFi Kit 32 pinout diagram;
  7. New WiFi Kit 32 schematic diagram; 8. Circuit optimization, the system is more stable; 9. Better power management system design

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