Voice Module Sound Module Audio Player WT588D
- Input Supply voltage (V) :2.8 ~ 5.5
- Current consumption (sleep mode: 10 µA
- Sampling frequency (kHz): 6 ~
- Built 13Bit/DA converter, and 12Bit/PWM output.
- Support for loading WAV audio formats
- Module package (with FLASH memory and peripheral circuits) have DIP16, DIP28, chip packaging has DIP18, SSOP20, and LQFP32 form
- Built 13Bit/DA converter, and 12Bit/PWM output
- PWM output can directly drive 0.5W/8Ω speakers, push-pull current abundant support DAC / PWM output of two ways;
- Support for loading WAV audio formats;
- USB download mode, support for online download / offline download; WT588D voice chip, even in the case of electricity, will also be able to download the data to the normal SPI-Flash;
- Supports MP3 control mode, control mode button, 3 × 8 key combination control mode, parallel control mode, front-line serial control mode, three-wire serial control mode, and three-wire serial control I / O port expansion output mode;
- Support load 6K ~ 22KHz audio sampling rate
- Up to 500 segments can be loaded for editing audio
Text to Speech TTL Module (Serial to Speech)
-  Single row 0.1″ header for easy connection to a host system
- Power requirements: +5 VDC
- 30 mA idle
- 46-220 mA active (depending on speech parameters and output load)
- Â Communication: Asynchronous 9600 bps serial (8N1)
- Dimensions: 1.25″x1.5″x0.37″
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Text support rate is better
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 Interface operation is simpler
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5V single power supply.
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Output directly connected to the speaker, can drive 4 ohms 3W / 8 ohm 2W speakers
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Busy status output, can be connected to the microcontroller IO or indicator light, no need to be left floating.
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 Voice effect optimization
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 Module miniaturization and easy integration
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Dimension: 33*27.5mm
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With mounting holes
Speech Recognition Module
- Working voltage: 3.3/5V
- Local Voice Recognition
- Very low rate of false triggering
- Speaker connector(JST2.0, the speaker is not included)
- Built-in microphone
- 22 recognition entry
- Default Baud rate: 9600
- Flash: 2Mbytes
- Microphone Sensitivity: -40dB
- Microphone SNR: 58dB
- Operating temperature: 0 – 85 degrees C
Fingerprint Scanner TTL GT511C3 – 3.3V to 6V
- Model: GT-511C3
- Operating Voltage(VDC): 3 to 6
- CPU: ARM Cortex M3 Core (Holtek HT 32F2755)
- Sensors: Optical
- Image Size: 202 x 258 Pixel
- Resolution: 450 DPi
- Effective Scanning Area(mm): 20 x 16
- False Acceptance Rate (FAR): 0.001%
- False Rejection Rate(FRR): < 0.1%
- Operating Temperature : -20°C ~ +60°C
- Default Baud Rate: 9600bps
- High-Speed, High-Accuracy Fingerprint Identification using the Smack Finger 3.0 Algorithm
- Read and Write Fingerprint Templates and Databases
- Simple UART protocol (Default 9600 baud)
- Capable of 1:1 Verification and 1:N Identification
- High-accuracy & high-speed fingerprint identification technology.
- Works well with dry, moist, or rough fingerprints.
- 200 fingerprints storage.
- Easy one-touch enrolment.
- Dimensions(mm): 37 x 17 x 9.5
- Weight: 6gm
MEMS Microphone Breakout – INMP401 (ADMP401)
- -3dB roll off at 100Hz and 15kHz
- supply voltage: 1.5 to 3.3VDC
- Should comfortably output 40mW
- SNR of -62dBA
- Should comfortably output 40mW
- Omnidirectional MEMS microphone
- High SNR
- Sensitivity of −42 dBV
- Low current consumption of <250 μA
- Single-ended analogue output
- High PSRR of 70 dB
- Compatible with Sn/Pb and Pb-free solder processes
- 72 mm × 3.76 mm × 1.0 mm surface-mount package
Infrared Ir Obstacle Avoidance Detector Sensor Module Adjustable 2-180cm
- Power requirements: 5 VDC
- Communication: Digital High/Low Output
- A variety of welding methods, vertical and horizontal, to expand the scope of application
- Add precision potentiometer to adjust infrared 38KHz detection range
- Sensor detection with enabling the port, convenient signal line as bus application line
- Power-on enable port default level, the sensor enables the detection output signal
- Detection range up to 1.2 meters
- Software enhancement, setting can avoid infrared light interference of the same module or other kinds of infrared remote control devices
- Working condition of each module recorded with EEPROM, reduce the probability of mutual interference of the same paragraph to 1%
- Signal low output
- Pin SIP header, applied in breadboard or through-hole project
- On-board set jumper JP, the signal output has a latch function when shorted, otherwise, it is jog output
- Operating temperature: 32 to 158 ° F (0 to +70 ° C)
- Size: 2.4cm × 2.8cm
58mm Thermal Printer (Black)
- Heavy-duty 58mm direct thermal printer
- Inbuilt Adapter
- High speed printing of 90mm / Sec
- Free Drivers, USB, Adapter and Paper Roll
- Interface: usb + cash drawer support.
- Works with windows 7 / 8 /10
- High speed printing
- Long life thermal head.
- Perfect print quality
- Low cost,Low noise, fast speed print.
- Support cashbox drive.
- Compact and lightweight,beautiful design.
- Â Built in data bumper (data received when printing).
- Interface type parallel port or serial port.
- Support to enlarge characters and adjust characters spacing for printing.
- Compatible with esc/order pos.
- Operation temperature0~50 Degree C
- Relative humidity10~80%
- Item size 12.8 * 18 * 10.8cm
Power Line Carrier Module KQ-430F
Raspberry Pi Pico
- Operating Voltage: 1.8-5.5 VDC
- Processor: RP2040 (Dual-core Arm Cortex M0+) By Raspberry Pi
- RAM: 264 KB
- GPIO: 26 Pins
- Clock Speed: 133 MHz
- On-Board Port: Micro-USB 5V/2.5A DC Power Input Port
- 2MB of onboard Flash memory
- The castellated module allows soldering directly 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
- Operating Temperature Range: -20 to 85 degrees C
- Temperature sensor
- Accelerated floating-point libraries on-chip
- 8 Programmable I/O (PIO) state machines for custom peripheral support
5 Channel Infrared Reflective Sensor promixity sensor
- High-Quality Tracker Sensor
- The module is a convenient carrier for eight IR emitter and receiver pairs evenly paced.
- Distance between each IR Sensor: 15mm
- Uses 5 sensors for best resolution
- Great useful in building fast line following and grid navigating robots
- Comes with easy to use digital outputs with a direct connection to microcontrollers
- The array has mounting holes of 3mm diameter for easy mounting
- Status LED on each sensor for the detection of black line
3 Channel Infrared White/Black Line Detection Module – Proximity Sensor
- Input voltage: 3.0 V – 5.5 V
- High accuracy for tracking Black/White lines.
- Distance sensor at the front, distance can be adjusted
- Special touch sensor design, making the robot design simple
- Output form: digital output (high and low level)
- Indicator LEDs
- Onboard potentiometer to adjust the sensitivity
- Detection distance: 0 – 4 cm (black and white line sensors), 0 – 5 cm (adjustable distance detection)
