Packaging Details - Unit Type:piece
- Package Weight:0.02kg (0.04lb.)
- Package Size:10cm x 10cm x 10cm (3.94in x 3.94in x 3.94in)
Packaging Details - Unit Type:piece
- Package Weight:0.02kg (0.04lb.)
- Package Size:10cm x 10cm x 10cm (3.94in x 3.94in x 3.94in)
tyle="max-width:650px;overflow:hidden;font-size:0;clear:both"> /piece /piece /piece /piece /piece /piece /piece /piece 4737589445907122 Recommended by the seller Features: Support Serial operation Wide frequency range,high precision LCD can display frequency and duty datio,Easy to oprate Output of three-channel PWM at the same time, Adjustable frequency,3-channel frequency output consistent,duty ratio can be independently adjusted,suitable for most occasions Specifications: 1.Operating voltage3.3~30V; 2. Frequency range1Hz~150KHz; 3. Frequency accuracy:In each range of accuracy is about 2% 4. Signal load capacity:Output current can be around 5~30ma 5. Output amplitude: PWM amplitude and supply voltage equal 6. Ambient temperature:-20~+70° First.Module description Three-channel PWM is outputted,wide frequency range and the duty ratio can be adjusted independently Frequency is divided into four areas,automatic switching: 1.XXX(No decimal point): 1HZ Stepping Unit,Range:1Hz~999Hz; 2.X.XX(The decimal is in the hundreds place):0.01KHZ Stepping Unit,Range: 1.00Khz~9.99Khz; 3.X.XX(The decimal is in the tens place):0.1KHZ Stepping Unit,Range: 10.0Khz~99.9Khz; 4.X.X.X(The decimal is in the ones place):1KHZ Stepping Unit,Range: 1Khz~150Khz; e.g. ,frequency display:100 represent the pulse of 100Hz ; 1.01 represent the pulse of 1.01KHz; 54.1 represent the pulse of 54.1KHz 1.2.4 represent the pulse of 124Hz The value range of dutyfactor: 0~100%,100% is represented by A0%. All parameters setted up can be automatically saved in case of power cut. Second.Parameter settings Module has 8 independent keys,used to set the frequency and duty ratio,support short press (increase or decrease a unit) and long press (fast increase or decrease),very simple,set the parameters automatically save,power loss. 3-Way duty ratio button can be pressed at the same time,real-time adjustment, liquid crystal display is the last pressed button duty ratio,real-time is very strong,can be used as a simple several road duty ratio scan. Third.Scope of application: 1.Used as square wave signal generator to generate square wave signal for experiment development and use 2.Used to generate a square wave signal to control the motor driver; 3.Generating adjustable pulses for MCU use; 4.Generate adjustable pulse, control related circuit (PWM dimming speed and other applications). Forth.UART Serial command: Baud rate:9600 bps Data length:8 Stop bits:1 Check digit:none Flow control:none 1.set the frequency of the PWM ¡°F101¡±: Set frequency of 101 HZ (001~999) ¡°F1.05¡±: Set frequency of 1.05 KHZ(1.00~9.99) ¡°F10.5¡±: Set frequency of 10.5KHZ(10.0~99.9) ¡°F1.0.5¡±:Set frequency of 105KHZ(1.0.0~1.5.0) 2.set the duty ratio of PWM "DX:YYY": Set PWM duty ratio x: (1~3) PWM serial number,YYY: (000~100) duty ratio; For example d1:050,set 1th PWM duty ratio to 50% 3.Read Setup parameters Send a "read" string to read the parameters of the setting. Message format:F156,D1:052,D2:059,D3:058, Set successful return:DOWN Set failed to return:FALL Product information Product name PWM pulse frequency adjustable module Product number VHM-800 Module output PWM output Operating Voltage 3.3~30V Frequency Range 1Hz~150KHz Frequency accuracy The accuracy of each range is about 2% Signal load Output current can be around 5~30 yards Output amplitude PWM amplitude is equal to supply voltage Ambient temperature -20~+70°C Product Size 57*37*14mm After sales service: About Payment 1.We accept Alipay, West Union TT All major credit cards are accepted through secure payment processor ESCROW. 2.Payment must be made within 3 days of order. 3.If you can\`t checkout immediately after auction close, please wait for a few minutes and retry Payments must be completed within 3 days. About Shipment 1.WORLDWIDE SHIPPING (Except some countries and APO/FPO). 2.Orders processed timely after the payment verification. 3.We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address. 4.The images shown are not the actual item and are for your reference only. 5.SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season. 6.If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction! 7.Due to stock status and time differences, we will choose to ship your item from our first available warehouse for fast delivery. Return & Refund 1.You have 7 days to contact us and 30 days to return it from the date it was received.If this item is in your possession more than 7 days, it is considered used and WE WILL NOT ISSUE YOU A REFUND OR REPLACEMENT.There are NO EXCEPTIONS! Shipping cost is bear by both seller and buyer in half. 2.All returned items MUST BE in the original packaging and you MUST PROVIDE us with the shipping tracking number, specific reason for the return, and your po#. 3.We will refund YOUR FULL WINNING BID AMOUNT, upon receipt of the item in its original condition and packaging with all components and accessories included, AFTER BOTH Buyer and Seller cancel the transaction from . OR, you may choose to have a replacement. 4.We will bear all the shipping cost if the product(s) is (are) not as advertised. About Feedback We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns. It is impossible to address issues if we do not know about them -->
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