e-Build Boards and Electronics

02/10/2024

"ESP32 30pins Type C Wifi IoT Development Board

This ESP-32 Development Board with 2.4 GHz ultra-low power dual-mode Wi-Fi and Bluetooth dev kit is ideal for prototyping IoT or other devices which require wireless and internet connectivity, utilizing the powerful ESP32 microcontroller.

Features:
✅High performance-price ratio;
✅Small volume, easily embedded to other products;
✅Strong function with support LWIP protocol, Freertos;
✅Supporting three modes: AP, STA, and AP+STA;
✅Supporting the Lua program, easily to develop."""

02/10/2024

25/09/2024

"✅KY-037 High Sensitivity Sound Microphone Sensor Detection Module For Arduino AVR PIC

✅Features:
100% Brand New.
Size:32mm*17mm*8mm(length*width*height)
Main chip:LM393, Electret condenser microphone
Working voltage: DC 4-6V
Signal output indication
Single channel signal output
The output effective signal is low level
When there is sound, outputs low level and the signal light
Can be used for Acoustic control light , give sound and light alarm working with Photosensitive sensor ,and sound control, sound detect
Circuit board output switch quantity
Note: The Maximum induction distance is 0.5"

25/09/2024

"✅KY-032 4pin IR Infrared Obstacle Avoidance Sensor Module Diy Smart Car Robot KY032 for Arduino

✅Description:
Object is sensed output 0, output 1 is not sensitive to the time, directly with 3V and 5V microcontroller IO port connected.

Sensing distance 2-40 cm, distance, good anti-jamming capability. (Note: The infrared sensor can not detect all objects get the same distance, objects of different colors of light reflectance of different objects closer darker black shorter distance detected, the sensor 2-40 cm is measured against the white wall of)
Speed, suitable for smart car obstacle avoidance, black and white line tracking, anti-drop, product counters, cutting lines, liquid level detection.

This sensor is made with black and white lines tracing the car ran without black line on white paper, available in concrete The yellow complex environment such as the black line patrol track. As long as the black line around the slightly lighter color than black can, eliminating the traditional moves, so that environmental layout easier.

The sensor 3 to 6V supply, wide range, suitable for 3V and 5V MCU system.

With Enable, EN terminal is equal to ""1"" when the sensor does not work, equal to ""0"" when working. Jump on the sensor end cap long after the EN grounding plug (EN long as ""0""). To use the EN pin when the jumper cap is removed.
Frequency adjustment potentiometer is used to adjust the carrier frequency of the infrared emission tube, because the integration receiver 38KHZ in particular when the carrier frequency is the most sensitive. The 502 resistor clockwise transferred do (that is, the launch tube at maximum brightness), and then at a white wall tone 103 resistance, has been transferred to the sensing distance is the farthest so far so that the sensor will work in the best state

Working voltage: DC 3.3V-5V
Working current: 20mA
Working temperature: -10degree+50degree
Detection distance : 2-40cm
IO interface: 4 line (-/+/S/EN)
Output signal: TTL Level
Adjusting mode: Multi resistance regulation
Effective angle: 35°
Size: 4.5x1.1cm(approx)"

02/05/2024

"✅MAX9814 Microphone AGC Amplifier Board Sound sensor Module

✅Specifications:

- Supply Voltage: 2.7v-5.5v @ 3mA current
- Output: 2Vpp on 1.25V bias
- Frequency Response: 20Hz - 20KHz
- Programmable Attack and Release Ratio
- Automatic gain, selectable max from 40dB, 50dB or 60dB
- Low Input-Referred Noise Density of 30nV/
- Low THD: 0.04% (typ)"

02/05/2024

"✅AHT20+BMP280 Temperature, Humidity and Air Pressure Module

This product consists of new AHT20 and BPM280 digital temperature and humidity sensors, with a 12C main output and support for simultaneous online access to multiple 12C electronic devices or modules
It can use a DC voltage of 2.8V-5V, with easy voltage adaptation, low power consumption, simple circuit, and accurate temperature measurement points. Stable and fast transmission speed
Connect using a 4P GROVE Test cable, making it convenient for users to use quickly
Size: 15 * 15mm
Working voltage: DC20-5V

✅Product features:

1: Simple circuit
2: Accurate temperature measurement points
3: Stable and fast transmission speed
4: Easy voltage adaptation and low power consumption
5: Easy to understand"

02/05/2024

"✅FSR402 Pressure Force Sensor FSR 402 Sensitive Resistor 100g to 10kg

✅Features:
FSR402 a light weight, small size,ultra-thin resistive pressure sensor.This kind of pressure sensor is to take place in FSR film sensor area pressure into the change of the resistance value, thus for pressure information.The lower the pressure, the greater the resistance.Allow its use in place of pressure 100 g - 10 kg.The terminal holder sensor can be used in the manipulator with or without holding items, robot first step walk the ground sensors, mammals bite test of biological experiments, application scope and widely."

02/05/2024

"✅ESP32 Expansion Board

✅ESP32 Super Breakout Board Expansion Board 3 Types Outputs for ESP32 Module ESP-WROOM-32 ESP32 Block PCB

✅Features:
1.Applicable to ESP32-DevKitC (30P) series expansion board
2.Extensive compatibility: Please confirm that the pin width of your esp32 board matches the pin width of the leakage board
3.The module is safe, reliable, expandable and suitable for various applications.
4.Support DC (6.5-12V) power supply or USB (5V) power supply, stable and reliable, providing good contact and stable signal transmission for your esp32 board
5.Expanding GVS interface facilitates access to various electronic module sensors, while creatively designing JUMP interface, which is very useful for you to reuse all pins, and is very suitable for users to reuse all pins in diy projects.

✅Parameters:
Expansion board model: ESP32-DevKitC (30P) series expansion board
Support DC (6.5-12V) power supply or USB (5V) power supply
Expand GVS interface to facilitate access to various electronic module sensors, and creatively design JUMP interface,
Default jumper cap can be provided to select 5V or 3.3V GVS output power supply, which is more convenient for matching external 5V electronic module sensors.

✅Interface description:

1. Power indicator PWR
2. USB 5V power supply input interface
3. DC 6.5-16V power supply input interface
4. I2C expansion interface (two groups)
5. Development board IO expansion interface (GVS interface)
6. Development board installation interface
7.5V/3V output interface
8.Jump interface [select 5V or 3.3V V voltage]
Package include：
1X development board expansion board"

02/05/2024

"✅6-30V Relay Module Switch Trigger Time Delay Circuit Timer Cycle Adjustable

✅Product introduction:
1. Operating voltage: 6--30V
2. Trigger Signal Source: High Level Trigger (3.0 V-24 V), signal ground and system ground are not common, which can increase anti-interference abilit
system (short circuit can also connect with a ground common)
3. Output Capacity: can control no more than DC 30V 5A AC or 220 V devices 5A
4. Optocoupler Isolation: improve the anti-interference ability, after the parameter setting, it will memory forever
Warning: Relay contact is passive and electricity production; 1 channel has the control function on / off
✅Operation mode:
P1: After triggered signal, power relay on time OP, then turn off; within the OP period following operation:
1) P1.1: signal being triggered again is not effective
2) P1.2: signal being triggered again, start time again
3) P1.3: signal being triggered again, reset; disconnect relay, stop timing
P2: giving the trigger signal, the time after shutdown relay CL power relay OP time; then timing, turn off the relay
P3.1: give the trigger signal after the power relay on time OP, CL shutdown time relay; then operating cycle above cycle gaive signal again, shutdown relay stop timing; cycle times (LOP) can be set
P3.2: after connecting. no need to trigger signal, power relay on time OP, CL shutdown time relay; then the operating cycle above timea cycle (LOP) can be set
Q4: keeping the function of the signal; if there is no trigger signal, the time will be canceled, relay stay connected; when the signal disappears, timing OP turn off the relay; over time, if no signal again, the time is cleared
✅Time interval:
0.1 s (minimum) ~ 999 min (maximum) continuously adjustable
how to choose the time interval:
in the selection of parameter set interface mode, and press the STOP button to select the time
###. if the decimal point is in some place, the time interval is s-1 999 s
xx. x is decimal place is ten, the time interval is 0.1 s 99.9 s-
x. x. x is the decimal point are all on, the time interval is 1 min-999 min
parameter Introduction: OP power over time, turn off time CL, LOP cycle times (1-999 times, ""---"" is unlimited cycle)
✅How to set the parameter:
1. First make sure relay operation mode
2. According to the operaiting relay mode, the main interface (power module will flash current operating mode; standard mode P1.1, then come intot main interface); long press SET key two seconds and then looen enter selection interface mode; by pressing UP, DOWN key to choose the mode setting
(P1.1 ~ P4)
3. After selecting the mode, press short SET to set the corresponding parameter, then the parameter you want to set will flash
(OP power in time; CL power off time; LOP cycle times, ""---"" is unlimited cycle ); by UP, DOWN to set the parameter value, support long press"

02/05/2024

"✅Raspberry Pi Pico RP2040 Microcontroller Type C

Raspberry Pi Pico is a low-cost, high-performance microcontroller board with flexible digital interfaces. Key features include:
RP2040 microcontroller chip designed by Raspberry Pi in the United Kingdom

Spefications:
✅Dual-core Arm Cortex M0+ processor, flexible clock running up to 133 MHz
✅264KB of SRAM, and 2MB of on-board Flash memory
✅Castellated module allows soldering direct to carrier boards
✅USB 1.1 with device and host support
✅Low-power sleep and dormant modes
✅Drag-and-drop programming using mass storage over USB
✅26 × multi-function GPIO pins
✅2 × SPI, 2 × I2C, 2 × UART, 3 × 12-bit ADC, 16 × controllable PWM channels
✅Accurate clock and timer on-chip
✅Temperature sensor
✅Accelerated floating-point libraries on-chip
✅8 × Programmable I/O (PIO) state machines for custom peripheral support"