NodeMCU V3 ESP8266 ESP-12E is WiFi development board that helps you to prototype your IoT product with few Lua script lines, or through Arduino IDE. The board is based on ESP8266 ESP-12E variant, unlike other ESP-12E, you won’t need to buy a separate breakout board, usb to serial adapter, or even solder it to a PCB to get started, you will only need a usb cable (Micro USB).
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NodeMCU V3 ESP8266 ESP-12E is WiFi development board that helps you to prototype your IoT product with few Lua script lines, or through Arduino IDE. The board is based on ESP8266 ESP-12E variant, unlike other ESP-12E, you won’t need to buy a separate breakout board, usb to serial adapter, or even solder it to a PCB to get started, you will only need a usb cable (Micro USB).
1 Star
NodeMCU V3 ESP8266 ESP-12E is WiFi development board that helps you to prototype your IoT product with few Lua script lines, or through Arduino IDE. The board is based on ESP8266 ESP-12E variant, unlike other ESP-12E, you won’t need to buy a separate breakout board, usb to serial adapter, or even solder it to a PCB to get started, you will only need a usb cable (Micro USB).
1 Star
CRYPTOiNK is an E-ink Display to Realtime Update Select Crypto Currency. CRYPTOiNK uses a TP4056 Charger to charge a 6000mAh Lipo Battery. Built into the Charger is a Low Voltage, Over Voltage, and Over Current Protection Circuit. Because the Ilpo battery does not provide a constant voltage and ranges from 3.4 - 4.2V, a MT3608 DC/DC Boost Module to provide a consistent Voltage for the Waveshare Driver board to regulate down to a 3.3V that is used by the ESP8266 and Eink Display. The device based on ESP8266 and supports the Thingspeak IoT server for currencies real-time communications.
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WiFi 802.11b/g/n Transceiver Module 2.4GHz ~ 2.5GHz Integrated, Trace Surface Mount The ESP-12F is a compact WiFi module based on the ESP8266EX, widely used in IoT and embedded systems due to its low cost and built-in networking capabilities. Integrated WiFi (2.4 GHz) Supports 802.11 b/g/n Built-in TCP/IP stack (no external WiFi processor needed) Microcontroller + WiFi in one Powered by the ESP8266EX SoC Can run user applications directly (not just a WiFi modem) Flash Memory Typically 4 MB SPI flash (varies by version) GPIO Support Multiple multifunction pins: Digital I/O PWM I2C SPI UART ADC (1 channel) Size: ~16 mm × 24 mm Mounting: Castellated SMD module Antenna: Built-in PCB trace antenna (requires proper keepout zone) Power Requirements Operating Voltage: 3.0V – 3.6V (typical 3.3V) Current Consumption: Idle: ~70 mA Peak (TX): up to ~300 mA Common Interfaces UART – programming and debugging SPI – peripheral communication I2C (software-based) GPIO – general-purpose control #commonpartslibrary #transceiver #module #wireless #rf #wifi
2-layer SELV ESP8266 smart relay logic board using an ESP-12F module, MCP1700-3302E 5V-to-3.3V LDO, exact 2x7 relay/control connector pinout, 4-pin UART programming header, GPIO0 flash test point, active-low GPIO2 status LED, power and GPIO test points, 55x45 mm board outline, top-side assembly, bottom solid ground pour, ESP-12F antenna keepout, 4 M3 mounting holes, and silkscreen connector labels for production use.
Wearable health device prototype schematic with ECG sensing via AD8232, motion sensing via BNO085 or BMI270 IMU breakout, on-board processing using TI TM4C123G LaunchPad or MSPM0G3507 LaunchPad, optional ESP8266 Wi-Fi, LiPo battery charging with MCP73831, regulated 3.3 V power from TPS63031 buck-boost or AP2112 LDO prototype option, and user interfaces including electrode connector, JST battery connector, programming header, and optional on/off switch.
Industrial dual motor controller using an ESP8266 NodeMCU and L298N dual H-bridge for 2x 12V 2A DC motors, with MQTT remote control, manual override buttons, 5-bit DIP addressing, reset input, status LEDs, SS34 reverse-polarity protection, 5A fuse, LM2596 5V buck conversion, TVS surge protection, and future expansion provisions for INA219 current sensing, OTA firmware, RS485, and enclosure integration.
This project is a reference design for an ESP-WROOM-02 based device. It features USB-C for power and data transfer, onboard voltage regulation, and multiple peripheral connections. It also includes a CH340C for USB to serial conversion #referenceDesign #project #ESP8266 #WROOM #RF #WIFI #MCU #referenceDesign #simple-embedded #espressif #template #reference-design #polygon
This project is a reference design for an ESP-WROOM-02D based device. It features USB-C for power and data transfer, onboard voltage regulation, and multiple peripheral connections. It also includes a CH340C for USB to serial conversion #referenceDesign #project #ESP8266 #WROOM #RF #WIFI #MCU #referenceDesign #simple-embedded #espressif #template #reference-design
This project is a reference design for an ESP-WROOM-02U based device. It features USB-C for power and data transfer, onboard voltage regulation, and multiple peripheral connections. It also includes a CH340C for USB to serial conversion #referenceDesign #project #ESP8266 #WROOM #RF #WIFI #MCU #referenceDesign #simple-embedded #espressif #template #reference-design #polygon
This project is a reference design for an ESP-WROOM-02U based device. It features USB-C for power and data transfer, onboard voltage regulation, and multiple peripheral connections. It also includes a CH340C for USB to serial conversion #referenceDesign #project #ESP8266 #WROOM #RF #WIFI #MCU #referenceDesign #simple-embedded #espressif #template #reference-design #polygon
Etapa 1: Recolección y Almacenamiento de Energía Entrada: tus cactus en serie (ej. 15 cactus × 0.5 V = 7.5 V). Componente clave: Supercapacitor o batería recargable de baja capacidad (Li-ion o LiFePO4, 3.7V-7.4V). Diodo Schottky entre los cactus y el capacitor para evitar descarga inversa. 🛠 Ejemplo de componentes: Supercapacitor de 5–10 F, 5.5 V o batería de 3.7 V (tipo 18650). Diodo Schottky 1N5819. Módulo cargador TP4056 (si usas batería). Etapa 2: Aumento de Voltaje (Boost Converter) Conversión de 3.7 V / 7.5 V DC a 110 V AC. Necesitas: Boost Converter (DC-DC Step-up) de hasta 300 V DC. Inversor DC-AC (pequeño, tipo mini inverter para LEDs) que convierta ese voltaje a 110 V AC. NOTA: Algunos focos LED pueden funcionar con 110 V DC directamente, si quieres evitar el inversor. Etapa 3: Detección de Noche Sensor LDR (resistor dependiente de luz) conectado a un comparador (ej. LM393) o a un microcontrolador (como un ATtiny o ESP8266 si quieres funciones extra). Al bajar la luz solar: El comparador activa un MOSFET o un relé que conecta la energía almacenada al foco.
The ESP-12F is a compact and cost-effective Wi-Fi module based on the ESP8266 chip. It offers 802.11 b/g/n Wi-Fi connectivity, GPIOs, multiple interfaces (UART, SPI, I2C, ADC, PWM), and an integrated PCB antenna. It's ideal for IoT projects due to its low power consumption and small size.
NodeMCU V3 ESP8266 ESP-12E is WiFi development board that helps you to prototype your IoT product with few Lua script lines, or through Arduino IDE. The board is based on ESP8266 ESP-12E variant, unlike other ESP-12E, you won’t need to buy a separate breakout board, usb to serial adapter, or even solder it to a PCB to get started, you will only need a usb cable (Micro USB).
NodeMCU V3 ESP8266 ESP-12E is WiFi development board that helps you to prototype your IoT product with few Lua script lines, or through Arduino IDE. The board is based on ESP8266 ESP-12E variant, unlike other ESP-12E, you won’t need to buy a separate breakout board, usb to serial adapter, or even solder it to a PCB to get started, you will only need a usb cable (Micro USB).
This project is a reference design for an ESP-WROOM-02U based device. It features USB-C for power and data transfer, onboard voltage regulation, and multiple peripheral connections. It also includes a CH340C for USB to serial conversion #referenceDesign #project #ESP8266 #WROOM #RF #WIFI #MCU #referenceDesign #simple-embedded #espressif #template #reference-design
NodeMCU V3 ESP8266 ESP-12E is WiFi development board that helps you to prototype your IoT product with few Lua script lines, or through Arduino IDE. The board is based on ESP8266 ESP-12E variant, unlike other ESP-12E, you won’t need to buy a separate breakout board, usb to serial adapter, or even solder it to a PCB to get started, you will only need a usb cable (Micro USB).
This project is a reference design for an ESP-WROOM-02D based device. It features USB-C for power and data transfer, onboard voltage regulation, and multiple peripheral connections. It also includes a CH340C for USB to serial conversion #referenceDesign #project #ESP8266 #WROOM #RF #WIFI #MCU #referenceDesign #simple-embedded #espressif #template #reference-design
This project is a reference design for an ESP-WROOM-02U based device. It features USB-C for power and data transfer, onboard voltage regulation, and multiple peripheral connections. It also includes a CH340C for USB to serial conversion #referenceDesign #project #ESP8266 #WROOM #RF #WIFI #MCU #referenceDesign #simple-embedded #espressif #template #reference-design
This project is a reference design for an ESP-WROOM-02U based device. It features USB-C for power and data transfer, onboard voltage regulation, and multiple peripheral connections. It also includes a CH340C for USB to serial conversion #referenceDesign #project #ESP8266 #WROOM #RF #WIFI #MCU #referenceDesign #simple-embedded #espressif #template #reference-design