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🚀 Power your projects with long-range, low-power RS-485 mastery!
This 12-pack of MAX485 RS-485 transceiver modules features ultra-low power consumption (120-500µA), supports half-duplex serial communication at speeds up to 2.5Mbps, and enables reliable data transmission over cable lengths up to 4000 feet. Designed with convenient screw terminals and standard headers, these modules are ideal for scalable, multi-device industrial and DIY networking projects, ensuring robust, fail-safe operation with thermal protection.
| ASIN | B094MKRTRC |
| Brand | DORHEA |
| Color | blue |
| Compatible Devices | PC, Laptops |
| Connector Type | Serial Adapter |
| Customer Reviews | 4.0 4.0 out of 5 stars (42) |
| Input Voltage | 5 Volts |
| Item Weight | 0.06 Kilograms |
| Manufacturer | DORHEA |
| Number of Items | 12 |
| Package Quantity | 1 |
| Power Plug Type | No Plug |
| Specific Uses For Product | Laptop |
| UPC | 701715471146 |
| Unit Count | 12.0 Count |
| Warranty Type | Limited |
B**E
This was the second try for this type of equipment. First one (3.3V, auto direction) did nor work. These worked like a champ.
D**D
After multiple failed attempts to get 2 of these boards communicating with each other, I found something that mentioned a "terminating resistor" (R7) that should only be present on the last device in your RS485 run. I removed R7 on two boards and they successfully exchanged messages with each other. I have not yet tested more than 2 devices communicating on the same bus. I'm not sure yet if it will work if none of them have R7 installed. Also, if you are attempting to use these with arduino and the software serial library, this might be a helpful hint: pay attention to which pins have interrupt capability. You must receive serial data using an interrupt enabled input pin. The boards themselves seem reasonably well made. Solder joints all look good.
1**Y
These things are junk, 8 of 10 got really hot and the LED burned out none of them actually connected to each other I don't think
T**F
Used these and an ethernet cord to get led differential signal over 50 feet when the single ended data line wasn't powerful enough.
J**O
Most do not work, there is no TTL output for those that do not work. Also came with two different style boards which I thought was a bit sus.
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