The module is cheap, but the quality is pretty good.
I'm getting a very bright red dot when only using the resistor that is soldered onto it. Doesn't include any documentation, nor is it labeled with any number, so you can't find any documentation online. This gives us the issue of not knowing the pin layout, and not knowing the operating current and ... Read more
this is a good stuff to make a beam for safety project, movement detection and other different stuff. It is handy, just plug and may be stick it to a servo.... So many things you can do.... I needed to analyse the board to have a clear idea of how the board is made and how to use it without destroying it. I till don't understand how to use the middle ... Read more
Easy to use, there's no resistor needed and it doesn't get hot. The quality overall seems ok and due to the simplity of the product the lack of documentation won't be a problem this time. Nice red dot, bright enough to disturb your neighbors pretending you are a sniper or make your cat go mental I have not find any so far, apart from the lack of documentation.... Read more
Someone in the comments said it could not be seen after 4 meters. In my case, the dot was very sharp and bright from one end of my house to the other (about 10 meters) so that was a positive surprise. Due to this it would fit any application I would need it for. None if you consider the price point. It does exactly what is expected. It might not be ... Read more
Good soldering. Nice to play with (after paying some attention to the wires and the brass piece)
This is an laser led mounted on a small PCB. There are 3 pin connections which are not documented (I get used to the DX non documentation). So you have to figure out which pin is assigned to what. I have found 2 resistors. 1 resistor is mounted direct on ... Read more
5V Laser module works great no resistor needed. Works perfect with Arduino or other microcontrollers. I just connected 5V to the S and GND to the - and it works There is a small resistor soldered onto the laser module. Not that great quality, but it works perfect. Need to adjust Lens manually to get good focus of the laser dot. Great product! It would ... Read more
It's cheap, easy to connect and use, you don't need any resistant or so, it don't get hot. I don't find one so far. Others said it can be easyli short circuited, but I don't have that problem. It's pretty good for this price. If you need an easy controllable, easy-to-use laser, just buy it.
Check the Customer Photos in this page. You will find the wiring ... Read more
Easy to connect.
5v supply easy to integrate in a circuit.
Good pointer dot.
Does not get hot.
Does its job xD.
Very good for microprocessor interfacing.
Low power. Laser pointer not aligned properly with pcb and the dot is not a straight line.
Pcb contact and wiring are all bare, can be easily short circuited. great item !! If you need ... Read more
This laser LED looks similar to SKU 133778, rated to be 5 mW.
To operate with a 5V power supply, a series resistor is required. I used a series resistor of 1.2kOhhm, resulting in 2V over the laser and a current of 2.5mA, resulting in 5 mW power dissipation.
Connect grounding to the pin marked with a "-".
Connect the 1.2KOhm resistor to the ... Read more
Cheap and ready soldered laser. Laser is not so bright. Can not be seen good after like 4 meters. The spot seems a bit scraggy. As with all DIY parts on DX there is no manual. So I found out (searched the web) you have to wire minus to the pin labeled "-" and an 333Ohm resistor to "S" and then attach plus to the resistor. Without ... Read more
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