Electronic brick of microphone can be connected to the analog I / O port, when speaking to the microphone, the analog value will be changed. A recorder can be made by reading and saving the analog value.
Put on your sunglasses before putting this shield onto your 'duino - 40 eye-blistering RGB LEDs adorn the panel for a blast of configurable color. Arranged in a 5x8 matrix, each pixel is individually addressable. Only one pin is required to control all the LEDs. You can cut a trace and use nearly any other pin if you need some customization.
“An open-source firmware and development kit that helps you to prototype your IOT product within a few Lua script lines” Based on ESP8266 ESP12E wifi board, on-board USB-TTL support directly flashing from USB port, also on-board power circuits and all IOs setup.
This temperature & humidity sensor provides a pre-calibrated digital output. A unique capacitive sensor element measures relative humidity and the temperature is measured by a negative temperature coefficient (NTC) thermistor. It has excellent reliability and long term stability. Please note that this sensor will not work for temperatures below 0 degree.
A wireless relay is a codec-adaptive RF receiver with single channel relay. It helps easily deployment of wireless AC control for electrical appliances.Max 30 difference codec, unlimited controller or transmitter of each codec. Adaption of most popular RF remote controller, except rolling code.