Replacement filter activated carbon filter for solder fume extractor Humo

With this SMD kit you can easily consolidate your experience in SMD soldering. Many different components ensure varied soldering experiences. 28 SMD LEDs form a heart on the front. On the back is an NE555, the most used chip in the world, and some decade counters.The result is an LED chaser in the shape of a heart. For the more experienced solderers, the speed of the running light can be adjusted by varying two resistors.Once you have soldered everything, you have a great pin in your hands. Perfect to wear around your neck!The kit comes with all the necessary components and PCB:Board28 SMD LEDsBattery holder SMD CR2032SwitchCapacitors, resistors and circuit electronicsThe battery is not included. A standard CR2032 battery is required.

Humo is your personal, practical and loyal soldering companion. It sucks the soldering fumes for you and filters them through its activated carbon filter.The kit contains everything you need. Only a little soldering is needed and requires a little wood glue.A solder fume extractor is basically needed when soldering to extract the solder fumes through a filter. The soldering fume is not poisonous, but it is better if it does not go to your head all the time.In the Humo kit you will find everything you need for a complete solder fume extraction:The wooden case from the laser cutterA 120mm fanDC-DC Step-up converterFan grillMicro USB Connector for power1x activated carbon filter for the soldering fumesAs a power supply, your Humo can be connected to any USB port via a standard USB micro cable.Where does the name Humo come from?We were looking for a nice short name and did a little digging into other languages. Humo means "smoke" in Spanish. The perfect name for our little solder fume extractor.

A beautiful butterfly whose wings shine silver and are illuminated from behind with multi-colored LEDs. If you press the button, the wings shine in all colors of the rainbow.With this great soldering kit you can easily make a great necklace or brooch. On the back only 6 components must be soldered. A little unusual is only that the LEDs are THT, so through-hole components. They are soldered lying on the surface on the backside. We used this trick to have no holes on the front side. So the butterfly can shine in full glory without blemishes in many colors! All tricks are of course described in the instructions.You can find a video of the rainbow colours here: https://www.youtube.com/watch?v=b8JFJ-eYq9oThe kit comes with all the necessary components and PCB:Board4 rainbow RGB LEDsBattery holder SMD CR2032Switch

The great rainbow unicorn is something very special. The smiling unicorn is drawn with metal on the front of the board. Tail, horn and mane are slightly transparent and are illuminated from the back with rainbow LEDs. If you press the button, the hairs light up in all the colours of the rainbow. With this great soldering kit you can easily make a great badge. Only 6 components have to be soldered on the back. The only unusual thing is that the LEDs are THT, i.e. through-hole components. They are soldered on the back side lying on the surface. We used this trick to avoid having holes on the front. This way the unicorn can shine in its full glory without any blemishes in many colours!You can find a video of the rainbow colours here: https://www.youtube.com/watch?v=b8JFJ-eYq9oThe kit comes with all the necessary components and PCB:Board 4 rainbow RGB LEDsBattery holder SMD CR2032Switch

The cat in the box is a simple SMD soldering kit for collecting and trading. On the back is a simple circuit with CR2032 battery holder, on-off switch and a resistor. The front shows the cat in the box with two glowing LED eyes.The special thing about this kit: You can choose the eye colour yourself :). Red, pink, green, orange? It doesn't matter. Let the cat eyes glow in your favourite colour.We will send you all the LED colours. You can then decide for yourself which eyes you would like to have. The following colours are included:redorangepinkgreenFor this kit you only need to solder 3 SMD components (0805) and a few larger components. So don't be put off by SMD. The eye effect is worth it :).The kit includes all necessary components and the PCB:Board2 0805 SMD LEDs (for the eyes)Battery holder SMD CR2032SwitchResistor 0805

Have you always wanted to build your own fine dust sensor? The citizen science project sensor.community (formerly luftdaten.info) has developed a kit including software that can be used to record fine dust data and, if desired, other data such as temperature, humidity and air pressure.Basic equipmentThis kit consists of all the basic electronic components needed to build the fine dust sensor "AirRohr": The actual fine dust sensor "Nova Fitness SDS011".A WLAN and controller module "NdeMCU v3"All necessary plug cablesA intake hose for the fine dust sensorNow all you need is a housing (you can find some ideas below), a micro USB cable (you can also order this from us) and a simple USB power supply (not included).More sensorsIn addition, the following sensors can be added (not included in the basic version):DHT22: A simple humidity and temperature sensor (no soldering required).BMP180: A slightly better sensor from Bosch for temperature and air pressure (soldering required)BME280: A sensor from Bosch that evaluates temperature, humidity and air pressure (soldering required)InstructionsThe instructions for the kit and all explanations can be found at https://sensor.community/en/sensors/airrohr/.Case ideasThe case is not included. You can let your imagination run wild with the case. The sensors must be protected from wind and weather and there should be openings for the fine dust intake pipe and the other sensors. The original instructions simply use two corner pieces of a drain pipe. Further ideas:A "bird house": https://www.thingiverse.com/thing:4288829A wall-mounted box: https://www.thingiverse.com/thing:2775946Another housing: https://www.thingiverse.com/thing:2843927

A beautifully simple kit. This kit is specially designed for soldering beginners. With it you can learn very easily how to use the soldering iron. On the front of the medal-shaped board is the logo of the Binary Kitchen e.V. (a chef's hat with a crossed screwdriver and soldering iron) and the inscription "I can solder". Three rainbow LEDs illuminate the board. There is also a battery holder and a pin on the back.After you have finished soldering the kit, you can proudly pin the medal to your chest!For the kit, THT components were used, i.e. components to be inserted and soldered. Only 9 soldering points have to be done and the kit is ready. Simply fast and almost always a success!Of course, we have for the kit a meaningful step-by-step instructions!The kit comes with all the necessary components and PCB:Board3 rainbow RGB LEDsBattery holder THT CR2032