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Product description: Description: stm32f103c8t6 Minimum System Board, Beginner Level Board! Also, keil arm compiler, jlink, serial download, upgrade from 51 to arm, original chip, stable and high quality, easy to use, exclusive design and development, technical support well! Purchase. Features: stm32f103c8t6 Minimum System Learning Development Board Power supply voltage: 1. USB - 5 V 2.5 Volt front row power supply 3.3 V power supply option Typical application: led flashing light program (support various other programs) Main resources: 1. USB function 2. user led 3. power led 4. reset Maximum features: 1. compact design, easy to carry 2. full gold leaf in the front row 3. switch for imported material, etc. Dimension: 4.5 cm * 6.2 cm
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he Arduino Uno is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started. The Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the Atmega16U2 (Atmega8U2 up to version R2) programmed as a USB-to-serial converter. Revision 2 of the Uno board has a resistor pulling the 8U2 HWB line to ground, making it easier to put into DFU mode.
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MQ-9 gas sensor has high sensitity to Carbon Monoxide, Methane and LPG. The sensor could be used to detect different gases contains CO and combustible gases, it is with low cost and suitable for different application. Character * Good sensitivity to CO/Combustible gas * High sensitivity to Methane, Propane and CO * Long life and low cost * Simple drive circuit Application * Domestic gas leakage detector * Industrial gas detector * Portable gas detector
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Arduino Nano is a surface mount breadboard embedded version with integrated USB. It is a smallest, complete, and breadboard friendly. It has everything that Diecimila/Duemilanove has (electrically) with more analog input pins and onboard 5V AREF jumper. Physically, it is missing power jack. The Nano is automatically sense and switch to the higher potential source of power, there is no need for the power select jumper. Nano’s got the breadboard-ability of the Boarduino and the Mini USB with smaller footprint than either, so users have more breadboard space. It’s got a pin layout that works well with the Mini or the Basic Stamp (TX, RX, ATN, GND on one top, power and ground on the other). This new version 3.0 comes with ATMEGA328 which offer more programming and data memory space. It is two layers. That make it easier to hack and more affordable.
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NodeMCU is an open source IoT platform. It includes firmware which runs on the ESP8266 Wi-Fi SoC from Espressif Systems, and hardware which is based on the ESP-12 module. The term "NodeMCU" by default refers to the firmware rather than the development kits. The firmware uses the Lua scripting language. It is based on the eLua project, and built on the Espressif Non-OS SDK for ESP8266. It uses many open source projects, such as lua-cjson, and spiffs.
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Based on TP4056, this includes two pieces of 3.7V lithium battery charger modules, one of which is Micro USB interface, the other is Mini USB interface. It is small size and light weight, especially for a single lithium battery charging. Features: - Input voltage: 4.5V ~ 5.5V - Input Interface: Micro USB port or Mini USB port - Charging method: linear charge - A full charge voltage: 4.2V - Charge Current: 1A (default), modify the onboard resistor to adjust the charging current according to the table below. - Charging accuracy: 1.5% - Charging indicator: Red LED charging, Blue LED full. - Output Reverse: lithium batteries can not be reversed.
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RGB LED module consists of a plug-in full color LED made by R, G, B three pin PWM voltage input can be adjusted Section three primary colors (red / blue / green) strength in order to achieve full color mixing effect. Control of the module with the Arduino can be achieved Cool lighting effects.
Specifications
- the use of plug-in full-color LED
- RGB trichromatic limiting resistor to prevent burnout
- through the PWM adjusting three primary colors can be mixed to obtain different colors
- with a variety of single-chip interface
- the working voltage: 5V
- LED drive mode: common cathode driver