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PWM Pulse Frequency Duty Cycle Adjustable Module Signal Generator 1Hz-150KHz DO

PWM Pulse Frequency Duty Cycle Adjustable Module Signal Generator 1Hz-150KHz PWM Pulse Frequency Duty Cycle Adjustable Module Signal Generator 1Hz-150KHz Description: PWM signal generator is a device that provides electrical signals at a variety of frequencies, square wave, and output levels. It is used as a signal source or excitation source for testing. Widely used in production practice and technology. Features: 1>.With outer casing; 2>.LCD high definition display; 3>.Support UART; 4>.Support frequency adjustment; 5>.Support duty cycle adjustment; 6>.High precision detection; 7>.Support power-down memory function; 8>.1-Channel PWM output. Parameters: 1>.Product name: PWM Signal Generator; 2>.Model: XY-PWM; 3>.Work voltage: DC 3.3V-30V; 4>.Frequency range:1Hz~150KHz; 5>.Frequency accuracy:2%; 6>.Duty cycle range:0.00%-100%; 7>.Output Current: About 5-30mA; 8>.Output amplitude: Same to input voltage; 9>.Size:79*43*27mm; 10>.Operating temperature:-20℃~70℃; Frequency set range: Enter the settings interface when short press any button ‘FREQ+’ or ‘FREQ-’ in the normal running status to select frequency range. Automatically switch frequency range. Pay attention to the position where the decimal point moves when the button is pressed. Display ‘XXX’. No decimal point, The minimum frequency is 1Hz. The frequency range is 1Hz ~ 999Hz. Display ‘X.XX’. The decimal point is the penultimate, The minimum frequency is 0.01KHz.The frequency range is 1.00KHz ~ 9.99KHz. Display ‘XX.X’. The decimal point is the third last, The minimum frequency is 0.1KHz.The frequency range is 10.0KHz ~ 99.9KHz. Display ‘X.X.X’. The decimal point is fully lit, The minimum frequency is 1KHz.The frequency range is 1KHz ~ 150KHz. For example: Display ‘100’ means PWM output frequency is 100Hz; Display ‘1.01’ means PWM output frequency is 1.01KHz; Display ‘54.1’ means PWM output frequency is 54.1KHz; Display ‘1.2.4’ means PWM output frequency is 124KHz; Duty cycle set range: Enter the settings interface when short press any button ‘DUTY+’ or ‘DUTY-’ in the normal running status to select duty cycle. Automatically switch frequency range. Duty cycle range is 0.00%-100%. Use steps: 1>.Connect to power supply; 2>.Short or long press button ‘FREQ+’ or ‘FREQ-’ to set frequency; 3>.Short or long press button ‘DUTY+’ or ‘DUTY-’ to set duty cycle; 4>.Connect to load. UART communication and parameter settings The system supports UART data upload and parameter setting functions (TTL level); UART: 9600, 8, 1 1>.Set PWM frequency: ‘F101’:Set frequency is 101Hz.‘101’ can by replace by 001~999; ‘F1.05’:Set frequency is 1.05KHz.‘1.05’ can by replace by 1.00~9.99; ‘F10.5’:Set frequency is 10.5KHz.‘10.5’ can by replace by 10.0~99.9; ‘F1.0.5’:Set frequency is 105KHz.‘1.0.5’ can by replace by 1.0.0~1.5.0; 2>.Set PWM duty cycle: ‘DXXX’: Set duty cycle is XXX. ‘XXX’ can be 000-100. E.g:‘D051’ means PWN duty cycle is be set as 51%. 3>.Read set parameter: Send ‘read’ and then get parameter. 4>.Return value: Return ‘DOWN’: Set success. Return ‘FALL’: Set fail. Application: 1>.Square wave signal generator, generating square wave signal for experimental development; 2>.Used to generate a square wave signal that controls the motor driver; 3>.Generate adjustable pulses for use by the MCU; 4>.Dimmer; 5>.Speed governor; Note: It’s 1-channel PWM output signals are the same. They can not adjust independently. Package include: 1 x PWM Signal Generator Note: Instructions/schematic are NOT included. We don’t provide technical assistance please make sure that you are familiar with the product before purchasing. About Shipping: * Goods in stock in USA, buyer can get the parcel around 3-5 business days. * We provide tracking number freely for all buyers. * Please confirm your shipping address is correct. Buyers are responsible for undeliverable order due address mismatch. We reserve the right to charge shipping fee to reship undeliverable items. * Any potential customs tax fee applied to the parcel should be covered by the buyer.

NE555 Duty Cycle Frequency Adjustable Square Wave Signal Generator Board Module

NE555 Duty Cycle and Frequency Adjustable Pulse Square Wave Signal Generator Board Module This NE555 square wave pulse generator module can be used to produce square wave signals for experimental development, or in applications such as driving stepper motors, and as an adjustable pulse for microcontroller (MCU) applications. Only 31mm x 22mm (1.2″ x 0.9″), the board features an NE555 timer chip with jumpers and a potentiometer to fine-tune the frequency in four frequency ranges, and a second potentiometer to adjust the duty cycle (the relationship of how long the output is driven HIGH versus driven LOW). For example, a 50% duty cycle means the output is high 1/2 the time, and low 1/2 the time. Input voltage to the module (VCC) is variable from 5V to 15V DC and draws approximately 15mA at 5v (35mA at 12v) with an output amplitude of 4.2V peak-to-peak to 11.4V peak-to-peak based on the supply voltage. An indicator LED illuminates on a low-level output and flashes relative to the output frequency. At higher frequencies, the LED will appear to be on solid and without a visible flash since the flashing is too fast to see.. NE555 Module Features & Operation:Size: 31mm * 22mm(1.2″ x 0.9″)Main chip: NE555Input Voltage (VCC): 5V-15VDCInput current:~100MAOutput amplitude: 4.2V V-PP to 11.4V V-PP. (Varies with VCC voltage)Maximum output current: 15MA (VCC=5V, V-PP greater than 50%), 35MA (VCC=12V, V-PP greater than 50%).Output LED indicator (low level, LED is on, high level, LED is off; LED flashes with frequency. When the frequency is higher than about 30Hz, the LED will appear to be always on since the blinking is too fast to see.There is a 4-row x 2-pin header that provides jumper settings to select different frequency ranges. The jumper connects different value capacitors in the circuit to change the RC time constant of the circuit. The multi-turn potentiometer near the frequency range jumper provides fine control over the frequency once the range is set.Jumper settings are:~1Hz ~ 40Hz~40Hz ~ 500Hz~500Hz ~ 40kHz40kHz ~ >200kHzThe jumper ranges will vary between modules depending on the tolerances of the components used.The output duty cycle can fine-tuned using the onboard potentiometers. Duty cycle and frequency are not separately adjustable; adjusting the duty cycle will change the frequency The output frequency and duty cycle are adjusted using the following variables:Period T = 0.7 (RA +2 RB) CRA, RB are 0-10K Ohm adjustable potentiometers1Hz ~ 50Hz: C = 0.001UF50Hz ~ 1kHz: C = 0.1UF1KHz ~ 10kHz: C = 1UF10kHz ~ 200kHz: C = 100UF Applications:As a square wave signal generator for experimental developmentUsed to drive a stepper motor for generating a square wave drive signalGenerate adjustable pulses for microcontrollers (MCU)Package Includes:1X NE555 Duty Cycle Adjustable Pulse Frequency Square Wave Signal Generator Module Online schematic, installation and operation instructions Get it faster! Stocks and ships from our US Colorado office for quick delivery. We provide FREE USPS First Class Shipping with Tracking – Not Economy Shipping

Elitech RC-5 USB Reusable Temperature Data logger Temp Recorder Quick PDF Report

Large Capacity Up to 32,000 recording points. Keep recording for over 3 months at a 5-minute interval. Record interval: 10s~24h adjustable LCD Visual Display Over-temperature alarm & upper/lower limits can be set MAX/MIN values available Current date and time Recorded capacity 6-month Battery Life Up to 6-month battery life Adopting replaceable CR2032 Lithium battery Depending on optimal storage conditions of 15℃~23℃ / 45%RH to 74%RH Start & Stop Logging Press and hold the button for 5 seconds until the “Solid Triangle” icon or “Solid Square” icon shows on the screen, indicating the logger start/stop logging. Export Free Data Report from Software Connect the data logger to your computer and use ElitechLog software to save or export the data. Reset & Reuse the Logger Click “Quick Reset” to reset the orignal parameters settings. Disconnect the device from your computer to start using again. (Please see User Manual for more detailed instructions) Technical Specifications Temperature Measurement Range -30°C~+70°C(-22°F~158°F)* Temperature Accuracy ±0.5°C/±0.9°F(-20℃~+40°C); ±1°C/±1.8°F(others) Resolution 0.1℃/°F Memory Maximum 32000 points Start Mode Press button; Use software Stop Mode Press button; Use software; Auto stop Shelf Life 1 year Certification EN12830, CE, RoHS, FCC, WEEE Protection Grade IP67 Dimension 80*33.5*14 mm Weight 20g * * At ultralow temperature, the LCD will be slow but does not affect normal logging. It will be back to normal after the temperature rises. Free Elitechlog Software for Windows & macOS Meanings of the Setting Parameters: Log Clock: Not configurable. But the time will sync with that on the computer after our user clicks the Save Parameter button under the Parameter tab. S/N: Not configurable. Trip Description: Configurable. The info entered here will be shown on the report, it can be used to differentiate one logger from another. Log interval: Configurable. This means how often our user wants the logger to perform a reading, it can be 10S, 1minute, or 1day. Start Delay(H): Configurable. This means after you press the start button on the logger, how long it would wait to officially start logging. Press button: Configurable. This means after we press the start button for 4 seconds on the logger to start logging. Temperature Unit: Celsius or Fahrenheit Optional. High/low limit: Configurable. The upper and lower alarming point you want to set. RC-5 RC-5+ RC-5+ TE GSP-6 ISO 17025 Certified Record Capacity 32,000 Temperature Points 32,000 Temperature Points 32,000 Temperature Points 16,000 Temperature points, 16,000 Humidity points 32,000 Temperature Points Temperature Range -22℉~158℉(-30°C ~+70°C) -22℉~158℉(-30°C ~+70°C) -40°F to 185°F(-40°C ~+85°C) (External Sensor Only)) -40°F to 185°F(-40°C ~+85°C) -22℉~158℉(-30°C ~+70°C) Humidity Range NO NO NO 10%~90%RH NO Max. Battery Life 3-month 6-month 6-month 2-year 3-month Restart by Press Button NO ✓ ✓ NO NO Connection Type USB USB USB USB Cable USB Auto PDF Report NO ✓ ✓ NO NO Optional Password Protection NO ✓ ✓ NO NO Cyclic Recording NO NO NO ✓ NO Extra External Sensor NO NO ✓ NO NO

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