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Ships within 48 hours Β· Estimated delivery Aug 14 - Aug 19
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Waveshare Industrial 4-Ch PWM Output Module Modbus RTU RS485, Adjustable Frequency & Duty Cycle, Modbus RTU PWM Output 4CH1. This product is an industrial standard isolated RS485 to PWM pulse output module. Four channels of frequency and duty cycle are independently adjustable. It adopts Modbus RTU protocol and includes built in protection circuits such as power isolation, magnetic coupling isolation, self recovery fuse, and TVS. 2. The output uses high speed optocoupler isolation, and the output high level voltage can be selected via internal jumpers. 3. Four channels
1. This product is an industrial standard isolated RS485 to PWM pulse output module. Four channels of frequency and duty cycle are independently adjustable. It adopts Modbus RTU protocol and includes built-in protection circuits such as power isolation, magnetic coupling isolation, self-recovery fuse, and TVS.
2. The output uses high-speed optocoupler isolation, and the output high-level voltage can be selected via internal jumpers.
3. Four channels of PWM pulse output with frequency and duty cycle independently adjustable.
4. Supports setting device address (1 to 255) to cascade multiple devices via the RS485 bus.
5. On-board voltage regulator chip supports wide voltage supply from 7V to 36V.
6. On-board integrated power isolation provides stable isolation voltage; the isolated end requires no additional power supply.
7. On-board integrated magnetic coupling isolation enables signal isolation, with high reliability and strong anti-interference capability.
8. On-board self-recovery fuse and TVS (Transient Voltage Suppressor) effectively suppress surge voltage and transient spike voltage in the circuit, protecting against overcurrent, overvoltage, lightning, and static electricity.
9. Built-in watchdog ensures stable output without crashing.
10. Rail-mounted enclosure design, compact size, easy installation.
11. External 3 LED indicators for convenient viewing of power status and signal transmission/reception status.
Parameters:
1. Communication Interface: RS485
2. Communication Baud Rate: 4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000
3. Default Communication Format: 9600, N, 8, 1
4. Modbus Protocol: Standard Modbus RTU Protocol
5. Supply Voltage: DC 7V to 36V
6. Output Voltage: Default 3.3V, can be set to 5V via internal jumper
7. Output Current: Signal type, less than 30mA
8. Pulse Frequency: 1Hz to 200KHz
9. Frequency Resolution: 0.01Hz
10. Frequency Accuracy: 0.5 percent (equivalent to 5 per mille)
11. Duty Cycle: 0 to 100 percent
12. Duty Cycle Resolution: 0.01 percent
13. Duty Cycle Accuracy: 0.5 percent (1Hz to 50KHz), 1 percent (50KHz to 200KHz)
Specification:
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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Based on 6 reviews
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4
Double check sizing
Too big for my toddler, recommend sizing down. Quality is good if the fit is good.
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Reviewed in the United States on June 20, 2025
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3
Sizing
These were cute unfortunately way too big. The sizing thing is really off.
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Reviewed in the United States on January 25, 2026
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5
Cute
Cute shoes. A little faded, but adorable
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Reviewed in the United States on February 9, 2025
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5
Yay!
My baby recently needed new socks, and I was looking based on three thing:
- will they stay up
- do they have traction
- do they dig in and leave those awful red marks on him
These socks not only have the stretch spot at the top like most socks, but they also have a stretchy spot at the ankle. So, yes, they stay on! Hallelujah! This also keeps them from digging in an extra lot at the top, so they're not messing up his circulation.
The brand stamp on the bottom offers a little traction, but it's not exactly what I would call 'having traction.' Of course, most babies of my son's age don't actually need it, but I feel like that last little bit would take these socks over the top.
Bonus - they're not cheap and falling apart, and they've got a nice knit to them. They're light. They're airy. They're great summer socks. They fit easily into soft shoes. Don't buy these as heavy winter socks. Heading into summer, though, I'm quite certain we'll be getting plenty of use out of these.
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Reviewed in the United States on April 7, 2017
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5
Excellent Socks! From Birth to 4 years old. The Best Brand out there!
I love the Robeez Brand socks! They are the only ones that would stay on our boy when he was a baby (he'd kick off all the other brands). So at 4 months I found Robeez brand and have never looked back. My son is now 3 so I just ordered him the 2-4 size...which sadly is the biggest size they make. They are a bit too big for him now...but he will grow into them. I will be very sad when he can't fit into Robeez socks any longer. I highly recommend these socks! They wear great, wash great, and keep the kiddos secure with the no-slip writing on bottom.
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Reviewed in the United States on April 6, 2017