Pins has been soldered,comes in a small box to prevent it from being dropped during transportation | There is also a removable transparent film on each OLED glass surface for scratch resistant protection until use. | Pin Definition: VCC,GND,SCL, SDA | Voltage: 3V ~ 5V DC | Ultra-low power consumption: full screen lit 0.08W

Size: 1.28";Resolution:240x240;Driver chip:GC9A01 | Interface mode: SPI;Color: full color RGB | Driving voltage: 3-5V;Perspective: IPS full perspective | Operating temperature:-20-70℃ | Display size: 32.4mmx32.4mm;Overall dimensions:38mmx45.5mmx3.2mm

Single chip microcomputer extended keyboard | Precise and professional made, stable performance

Gear Stepper Motor DC 5V/12V 4 Phase Step Motor Reduction Step Motor | Diameter: 27mm;Voltage: 5V; 12V;Step angle: 5.625 x 1/64;Reduction ratio: 1/64 | It also can be connected as 2 phase to use

WIDE SUPPLY RANGE: 2.0V to 5.5V bits of resolution offered in an ultra-small, leadless | INTERNAL PGA up to 860 samples per second (SPS). An onboard PGA is available on the ADS1114 and ADS1115 that | Single-Shot Mode: Auto Shut Down; Programmable data rate: 8sps-860sps

Car positioning in navigation | Mobile phones, tablet PCs, handheld devices | Embedded positioning device | Wearable device

PS2 joystick Game joystick module Electronic building blocks standard interface and 2.54mm pin Interface lead, metal joystick.

Entering download mode: Press and hold the BOOT button of ESP32C3, then press the RESET button, release the RESET button, and then release the BOOT button, at this time, ESP32C3 will enter the download mode. (You need to re-enter the download mode every time you connect, sometimes you press it once, the port is unstable and will disconnect, you can judge it by the port recognition sound)

If you have any questions, please contact us, we have professional technicians | 1. Durable material: This product is made of high-quality material, durable, long service time, firm and stable in use. | 2. The complete solution takes up the least printed circuit board area. This board is used with 2.4GHz dual-mode WiFi and wireless chips using 40nm TSMC low-power technology. | 3. The best power and RF characteristics are safe, reliable and scalable for various applications. | 4. Meticulous workmanship: The meticulous design, perfect in workmanship, durable and long service life. | 5. Compact and portable: being so mini and light-weight, this product does not take much space and can be easily taken away.

1. NodeMCU-32S is the core development board designed by for Anxinke based on ESP-32S module. | 2. The Development Board continues NodeMCU 1.0 classic design, eliciting most I/O to both sides of the needle, developers can connect peripherals according to their own needs. | 3. When using breadboard for development and debugging, the standard needle arrangement on both sides can make the operation more simple and convenient. | small volume. Easy to embed into any product | Powerful, support LWIP protocol, freertos | Support three modes: AP, STA, AP+STA coexistence mode | ESP32 pin description Download address:https://drive.google.com/file/d/1Jri0UyqIFvaR9GH0-P3i9m6-8vD6mbuz/view?usp=sharing

If you think you have received the wrong product, please contact us and give us a chance to correct it,We also have tech support, just contact us on Amazon,thank you. | 5V and G (GND) pins | 3V3 and G (GND) pins | N8R2 | USB-to-UART Port and ESP32-S3 USB Port (either one or both), default power supply (recommended) | If you have problem, please contact us,We have professional after-sales | The black painted area is LED

Working voltage: 3.3V-5V | Working environment temperature: -40~85degree | Supports bus-powered, self-powered and high-power bus-powered USB configurations +1.8V (chip core) and +3.3VI/O interface (+5V withstand voltage) | Support USB bulk data transfer mode (512-byte packets in high-speed mode) UART transfer data rate up to 12 megabaud (baud). (PS232 data rate limit is determined by external level shifter), UART interface supports 7 or 8 bit data bits, 1 or 2 stop bits and odd/even/marker/space/no parity | Use external EEPROM to save operating mode configuration and USB description string configuration data via USB interface | Automatic transmission enable control for RS485 serial applications using the TXDEN pin | Compatible with UHCI/OHCI/EHCI host controller; compatible with USB2.0 high speed 480Mbps and full speed 12Mpbs

INMP441 is a high performance, low power consumption, digital output, omnidirectional MEMS microphone with bottom port | The complete INMP441 solution consists of a MEMS sensor, signal composition conditioning, analog-to-digital converter, anti-aliasing filter, power management and industry standard 24-bit I²S interface. | The I²S interface allows INMP441 to connect directly to digital processors, such as DSPs and microcontrollers, without the need for the audio codec used in the system | INMP441 has a high signal-to-noise ratio and is an excellent choice for near-field applications. INMP441 has a flat broadband frequency response, resulting in high definition of natural sound.

ATMega 32U4 AU running at 5V/16MHz,supported under IDE v1.0.1 | On-Board micro-USB connector for programming | 4 x 10-bit ADC pins | 12 x Digital I/Os (5 are PWM capable) | Rx and Tx Hardware Serial Connections

Brand new original chip | Module Data Rates can up to 400 kbit/s,power is low,is 2.5-uA Sleep State | module input Voltage Levels Compatible with VDD or 1.8 V Bus | module Programmable Upper and Lower Thresholds with Persistence Filter

TYPE-C interface, not easy to break | ATMega 32U4 AU running at 5V/16MHz,supported under IDE v1.0.1 | On-Board micro-USB connector for programming | 4 x 10-bit ADC pins | 12 x Digital I/Os (5 are PWM capable) | Rx and Tx Hardware Serial Connections