Wemos

Description:

The WeMos lithium battery shield provides a means of powering your WeMos mini, or WeMos mini Pro (see item HCWEMO0002) from a single cell (3.7V) lithium battery. The shield contains a DC-DC converter to step-up the batteries 3.7V to 5V supplying your WeMos mini and shields with up to 1A of power. When the battery is depleted simply plug the shield into a USB power source using a mini USB cable and it will automatically recharge the battery. Two LEDs on the shield indicate when the battery is charging and when charging has been completed.

You can use D1 mini without a USB cable, it's really wireless now. Put D1 mini anywhere, using this battery shield and a lithium Battery.

• Connect to the lithium battery (normal 3.3-4.2V)
• Charging port (normal 5V)
• Green LED lights up when charging is complete
• Red LED, lights when charging

This is WeMos LOLIN32 V1.0.0 based on ESP32 Rev1 Wifi Bluetooth Board. The board design is basically perfect. It takes more than a little inspiration from Adafruits Feather series.

It has 4 MB flash memory onboard, a USB-serial adapter (cp210x), and a LiPo battery charger and connector. All the relevant pins are broken out and well-labeled, especially on the bottom. It has a nice central reset button, and even a single user LED for your blinking pleasure.

For the price, it has one more feature (the LiPo) than wed ask for. It even (barely) fits into a standard breadboard. Cant beat that with a stick. No wonder they stocked out in the first week.

Note: A 2 mm JSTXH Connecter is compatible with this module.

Features :

• WIFI
• Bluetooth
• 4MB Flash
• Lithium battery interface, 500mA Max charging current.

ESP32 is already integrated antenna and rf balun, power amplifier, low noise amplifiers, filters, and the power management module. The entire solution is the least amount of PCB area. This board has 2.4ghz dual mode WIFI and Bluetooth chips by TSMC 40nm low power technology, power and RF characteristics of best, which is safe, reliable, and scalable to a wide range of applications.

Features:

• Support for the LwIP protocol.
• The entire solution is the smallest PCB area.
• Small size, easy embedding to other products powerful.
• Support three modes: using AP, STA and AP and STA LUA program support, easy to develop.
• High Performance & Brand new

Package Included:

1 x 0.96" OLED Display ESP32 ESP WROOM 32 WiFi BT Dual Module 2.4GHz for Wemos D1 AP STA

This is a powerful IoT development board, with a 16MB flash, an external antenna connector and a built-in ceramic antenna based on ESP-8266. Same size as D1 mini, but more light. D1 Mini PRO development board is compatible with Arduino, MicroPython, NodeMCU. And can be programmed in the Arduino IDE. New CP2104 USB-TO-UART IC, built-in ceramic antenna or external antenna PCB antenna. 11 digital input / output pins, all pins have interrupt / PWM / I2C / 1-wire; 1 analog input(3.2V max input); 16M bytes(128M bit) Flash and a micro-USB connection.

Features:

• 1 digital input/output pins
• Interrupt/PWM/I2C/one-wire
• 1 analog input(3.2V max input)
• 16M bytes(128M bit) Flash
• External antenna connector
• Built-in ceramic antenna
• New CP2104 USB-TO-UART IC
• Same size as D1 mini, but more light

Description

• This is DHT11 sensor Shield for measuring temperature and humidity.
• It is an accurate and inexpensive sensor that includes an ADC to convert analog values of humidity and temperature. The 8-bit microcontroller in the sensor is used for data conversion.
• It provides reliable output results when the ambient humidity in the range from 20% RH to 90% RH, and a temperature range of 0 ° C to 50 ° C.
• It covering the needs of most home and everyday application conditions.
• Technical details:
• Power supply: 3.3V
• Current: 2.5mA max use of current during conversion (when data request)
• Humidity: 20 - 90% ± 5%
• Temperature: 0 - 50º ± 2%

• Temperature and Humidity sensor Shield for WeMos D1 mini, with pin-headers set
• DHT22- digital sensor for detecting the temperature and humidity in the environment
• Unlike his predecessor DHT11, it has a high level of measuring accuracy and can be used on the street
• Also DHT22 have chip inside that can store the measurements and later transfer them to the controller

Description :

DHT22- digital sensor for detecting the temperature and humidity in the environment. Unlike his predecessor DHT11, it has a high level of measuring accuracy and can be used on the street. Also DHT22 have chip inside that can store the measurements and later transfer them to the controller. The only lack of this sensor is that the received data is delayed by 2 seconds.