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The name "NodeMCU" combines "node" and "MCU" (micro-controller unit). [8] Strictly speaking, the term "NodeMCU" refers to the firmware rather than the associated development kits. [citation needed] Both the firmware and prototyping board designs are open source. [8] The firmware uses the Lua scripting language. The firmware is based on the eLua ...
SparkFun ESP8266 Thing. The reason for the popularity of many of these boards over the earlier ESP-xx modules is the inclusion of an on-board USB-to-UART bridge (like the Silicon Labs' CP2102 or the WCH CH340G) and a Micro-USB connector, coupled with a 3.3-volt regulator to provide both power to the board and connectivity to the host (software development) computer – commonly referred to as ...
Whisper Node LoRa [221] ATmega328P Wisen - Talk²: A real ultra-low power board, capable of running of a single AA. The board counts with an efficient step-up regulator (MCP16251) and can be powered from 0.9 V. The Whisper Node has a built-in RFM95 LoRa long-range sub-GHz radio, also known as Semtech SX1276 and 4 Mbit flash memory.
ESP32 is a series of low-cost, low-power system-on-chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth.The ESP32 series employs either a Tensilica Xtensa LX6 microprocessor in both dual-core and single-core variations, an Xtensa LX7 dual-core microprocessor, or a single-core RISC-V microprocessor and includes built-in antenna switches, RF balun, power amplifier, low-noise ...
On field tests the Whisper Node was able to communicate on distances over 1 km line-of-sight and can run for years on battery, making a great platform for remote sensing and IoT applications. ZB1 [208] An Arduino-compatible board that includes a Zigbee radio . The ZB1 can be powered by USB, a wall adapter or an external battery source.
The STM32 is a family of microcontroller ICs based on various 32-bit RISC ARM Cortex-M cores. [1] STMicroelectronics licenses the ARM Processor IP from ARM Holdings.The ARM core designs have numerous configurable options, and ST chooses the individual configuration to use for each design.
A microcontroller (MC, UC, or μC) or microcontroller unit (MCU) is a small computer on a single integrated circuit. A microcontroller contains one or more CPUs ( processor cores ) along with memory and programmable input/output peripherals.
Serial data to the MCU is clocked on the rising edge and data from the MCU is clocked on the falling edge. Power is applied to V CC while RESET and SCK are set to zero. Wait for at least 20 ms and then the programming enable serial instruction 0xAC, 0x53, 0x00, 0x00 is sent to the MOSI pin. The second byte (0x53) will be echoed back by the MCU. [2]