Bicycle stop signal with accelerometer. Stop lights for bike

All kinds of lights on the bike, my sore spot, especially the rear ones. So I had to fork out and buy another miracle of the Taiwanese industry MAXXON wireless bike brake light. Or in Russian - a wireless stop signal for a bicycle. The word wireless should not scare anyone. It means that the brake light function does not use switches, wires, etc. The flashlight just has an accelerometer, which lights the diodes when braking.

And so to start the performance characteristics from the manufacturer.

  • Nintendo Wii technology to perform stop signal function
  • Easy installation, exactly the same as for most bike tail lights
  • When using batteries, the brightness of the LEDs remains bright
  • The ability to automatically turn on the lamp after 30 seconds from the start of movement (mode-3)
  • Automatic shutdown within 4 minutes after stopping
  • Power supply low voltage indicator (when the voltage drops below 2.3 volts)
  • Wide 260 degree viewing angle
  • Waterproof
  • Equipped with PWM (PWM) technology, which allows you to maintain brightness when the voltage drops, and also saves up to 30% of battery power
  • Delay time from the start of braking, until the stop signal is triggered 0.2 seconds
  • 5 super bright LEDs
  • Size: 70mm x 71mm x 24mm
  • Weight: 38 grams without power supply
  • Mounting on a seatpost with a diameter of 25-32 mm
  • Powered by two AAA batteries

Operating modes

Mode switching sequence: Off > Mode-1 > Mode-2 > Mode-3 > Off. Operating time from alkaline elements in mode-1 up to 200 hours, in mode-2 up to 100 hours, in mode-3 up to 800 hours.

Now let's get down to the real consideration of the flashlight. The flashlight arrived in such a blister pack.

The kit includes the flashlight itself, two AAA batteries, a pipe mounting bracket with two rubber bands. Rubber bands are needed to adjust the bracket to different seatpost diameters. The lamp can be fastened to the bracket in only one position. So placing it on a horizontal pipe will not work. The body is quite large, but flat. The diffuser is transparent, with small lenses for the two outermost LEDs. This was done to increase the viewing angle. Rubber power button. The stroke is small, but the pressure is felt good. The case itself does not contain any sealing rubber bands, so its moisture protection is rather conditional. It is possible that rain will not damage the device, but it is better not to drown in a puddle. The control board is very well made. It is immediately clear that they soldered not on the knee, but by a robot. All microcircuits are filled with a compound, so it is impossible to determine what exactly is installed there. In addition to the 5 main LEDs, the board has a small green LED. It performs the function of an indicator of low batteries and turning on the flashlight itself. The batteries sit very securely in place. There should not be any problems with the loss of contact. The case itself also closes tightly, but it will be problematic to open it without a tool at hand.

Agree, it’s not easy to notice a cyclist on the road in the evening, even if the two-wheeled car is equipped with reflectors. Braking moments are especially fraught with danger - the braking distance of a bicycle is relatively small. Conclusion: and non-motorized transport now needs a brake light.

We offer you two devices - the first is intended for road cars with a rear brake hub, the second - for bicycles with hand brakes (light road and road racing). Power source - battery 3336L; the brake light works relatively rarely, so it will last for the entire spring-summer-autumn season.

Stop lamp device for road bike shown in figures 1 and 3. Its main part is a microswitch. In addition to it, a gear sector is needed, sawn from duralumin 3-4 mm thick. The angle of the sector (that is, the number of teeth) is determined by the free play of the bicycle pedal, while it should be borne in mind that the microswitch must operate 10-15 mm of chain travel before braking begins.

The sector is pivotally mounted on a steel clamp located on the right leg of the rear fork directly under the chain. The spring sitting on the axis is selected so that the sector in the free position is oriented vertically. This is necessary for reliable capture of the sector by the chain when it moves in both directions.

1 - bicycle frame, 2 - microswitch, 3 - toothed sector, 4 - chain, 5 - microswitch fastenings, 6 - return spring, 7 - axis of the toothed sector, 8 - vpnt - spring axis, 9 - clamping screw of the clamp, 10 - clamp, 11 - nut, 12 - washer.

1 - lamp fastening screw, 2 - clip, 3 - reflector-reflector, 4 - 2.5 V light bulb, 5 - home-made copper wire cartridge, 6 - spacer (textolite), 7 - rear mudguard of the bicycle.

The microswitch is mounted on the same clamp and fixed with screws. The brake light is housed in a standard bicycle reflector. The cartridge can be made by yourself from copper wire Ø 1-1.5 mm. Its device is clear from Figure 3.

It is much easier to install a brake light on a bicycle with hand brakes - in this case, the microswitch is fixed directly on the brake lever bracket. In this case, the working rod of the "limit switch" must be recessed. This allows the microswitch to actuate at the very beginning of the working stroke when the brake lever is pressed. It is advisable to put two microswitches on these bikes (one for each brake lever) and connect them in parallel, which will allow the brake light to work regardless of which brake, front or rear, you brake.

In this short tutorial, I will tell you how to make a DIY bike light.
The process is easy and simple, but I took a few photos for clarity.

Follow step by step instructions for assembling a taillight for a bicycle, or you can watch the attached video at the end.

Step 1: Materials and Tools



Materials:

  • cheap bike light
  • wire with two strands
  • self-resetting mini button
  • heat shrink tubing
  • plastic clamps

Optional:

  • 1x10mm bright red diode
  • 2x5mm bright red diodes
  • small tube

Tools:

  • soldering iron
  • screwdriver
  • flashlight

Step 2: Increase Brightness (Optional)





This step is optional, if you wish.
Since the standard diode of my cheap flashlight is too dim, I decided to replace it with a brighter one left over from another project.

I just soldered three dim diodes and soldered three bright ones in their place (I also replaced the Chinese battery with a more powerful battery).

Step 3: Solder the Wires to the Button




Since the LED bicycle lamp should only light up when the brakes are applied, you need to connect a self-resetting button to an existing button. Since it needs to be mounted on the brake lever, the smaller it is, the better.

I looked in my button box, selected a small self-resetting button, and soldered a two-wire wire to it.
Such buttons are sold in cheap sets of 50 pieces, you can still remove them from old unused electrical appliances.
Now you need to cut a piece of wire to the correct length. You can focus on photo 4, the red line marks the path of the wire.

Step 4: Soldering the Wire to the Lantern



The flashlight they sold me didn't have the screw that holds the case closed, so it has an empty hole in the bottom cap.

At first I wanted to fit a screw of the right size to this hole, but then, seeing that the case itself was kept closed, I decided to pass a wire through this hole.

I passed a two-wire wire through the hole and soldered each wire to the contacts of the standard flashlight button.
(You don't have to worry about polarity, as it's just a relay connected to another relay, you can solder one wire to the left contact and the other to the right, and vice versa)

Step 5: Test the flashlight



It took us less than 10 minutes to increase the brightness of the flashlight and solder the self-resetting button.
After connecting the buttons in a chain, the rear light can burn in two modes.
Photo 2: if you press only the self-resetting button, the lamp will burn in the "stoplight" mode.
Photo 3: If you need the flashlight to shine, press the ON/OFF button without pressing the self-returning button.

Step 6: Attach the Wire to the Brake Lever




To secure the wire, I used plastic zip ties.
To make the design look a little cooler, I used a plastic tube, such as is commonly used in aerosol cans. The tail of the clamp, before being pulled into the carabiner, must be passed through a 5mm piece of plastic tube, there should be a wire in the loop formed.
(I used a piece of rubber band to secure the brake light button to the brake lever)

Step 7: Attaching the Wire to the Bike


I decided to fix the remaining length of the wire not on the frame, but on the brake wire.
(If, like me, you used a gray wire and you don't like its color, you can spray paint it with black spray paint or buy black wire right away)

Step 8: Attaching the Button and Lantern



To secure the light to the seat post, I took a couple of clamps and a piece of the wheel tube to keep the light from sliding on the metal of the post.

On top of the button, I put a piece of thin foam rubber (so that it does not stick when it is on), and wrapped it with electrical tape.

Step 9: Finished work! Your cycling is now safer

Like I said, this project is very simple and easy and it will take less than an hour of your time to build. It won’t cost much money either, but your cycling will become much safer.

You can watch a video demonstration. If you want to see what the brake light will look like in action.

Safety is a prerequisite for a comfortable ride on your two-wheeled horse. To protect yourself when riding a bike on the roads, you need not only to be visible to car drivers, to carefully control the bike without sudden movements, but also to be easily predictable. How to achieve the minimum probability of getting into a traffic accident?

Stoplight for a bicycle and turn signals - a guarantee of your safety!

A very useful thing that can be purchased after buying a bike is turn and stop lights. With them, you can be sure that you will be visible to motorists even on an unlit road. There are several types of such pointers:

Wired

This type of indicator usually consists of a front and rear light signal and a turn signal remote control that is mounted in a convenient place on the steering wheel. Rear light includes left and right turn signal and brake warning light.

Advantages:

  • low price.

Flaws:

  • wires;
  • as a rule, weak LEDs (not visible during daylight hours);
  • usually a flimsy design.

Wireless

If you have the means to buy a more expensive bike light, then the best choice for you will be the Spooklight WIP 1200 model. This is a high-quality and durable battery-powered system. The battery charge lasts up to 60 hours, and the battery can also be used as a power bank for other electronic devices (phone, smartphone, tablet, camera, etc.). The brake light works due to the built-in accelerometer.

Advantages:

  • reliable and durable;
  • no wires.

Flaws:

  • high price.

Revolights - a unique lighting system

Revolights is a completely new approach to bike lighting. Lamps of this type of signals are lit not only in front and behind, but also on the side, making you even more visible on the road. The patented technology spreads light to the ground, road signs, but does not blind oncoming drivers. The rear stop works thanks to the accelerometer.

Advantages:

  • such lanterns can be seen from all sides;
  • resistance to rain, snow, mud;
  • powerful LEDs;
  • design.

Flaws:

  • very expensive.

Stop signal on a bicycle with your own hands

Jack of all trades - homemade stop!

Many people are wondering: "How to make a brake light on a bike with your own hands?" What is needed for this:

  • red diode tapes (or cover white tapes with red tape);
  • wires;
  • insulated plate;
  • 12 volt battery.

Progress

Before starting, we straighten our arms so that our future signal works with a bang.

We attach with electrical tape our diode tapes to the upper stays of the bicycle.

We place the battery in a place convenient for you and connect the positive pole to the LED strip. In the photo, it was placed on a scarf between the upper feathers.

Then we string the spring onto the brake cable (see photo) and connect the wire from the tape to it.

That is, when the brake is pressed, the circuit closes and the light comes on. Everything is simple!

We close the circuit (press the brake lever).

As you can see, you can make a brake light with your own hands, while in terms of its characteristics it will not be inferior to the purchased lights.

Advantages of the described method:

  • low cost;
  • the ability to make lighting to your taste.

Flaws:

  • it is not possible to drive in rain, mud, snow, etc.;
  • inconvenient to replace batteries.

So, we examined the main types of lighting equipment for a bicycle. Now, based on the positive and negative features, you can choose exactly what you need! Take care of yourself on the roads!


Laser brake light for bike
Very bright and stylish accessory for your bike. In addition to ensuring safety on the road at night, thanks to the different modes of operation of the lamp, you will not go unnoticed on your laser track on the sides of the bike.
3 LEDs
Waterproof
Power supply: 2 AAA small finger batteries or equivalent (batteries not included)
Weight: 120 g
Color: red
Light: red
Adjustable clip, easy to install.
Functional:
LED operating modes:
1. Fast flashing (2 modes)
2. Slow flashing (2 modes)
3. Continuous light.
4. Off
Laser operating modes:
1. Continuous mode
2. Flashing
3. Off
1. 7 light modes (2 lasers, 5 led lamps)
2. Designation of the dimensions of the bike in the dark
3. Manual mode switching
Size: 7.8 x 4.6 x 4.6 cm
Working time: from 10 hours
Condition: new
Material: plastic
Manufacturer: CE Sports Store
High quality
Equipment:
1. Lantern with lasers.
2. Attachment to the bike frame.
Stylish brake light for bicycles and other equipment.

LASER lamp for bike 2 lasers + 5 red LEDs.
Waterproof, several modes for turning on LEDs and a laser, the ability to turn on separately.
The flashlight and lasers are very bright, clearly visible in the daytime.
Runs on two AAA batteries.

  • Salesman: Andrey

  • Price: 500 rub.