by Elecrow Hello Kit A preferred kit for STEAM education to get started. USER MANUAL V1.1 www.elecrow.
Directory 1. About Crowbits 2 2. Module list in the Hello Kit 5 3. Know the Crowbits module 5 4. Project tutorial 9 • 1 No touching 9 • 2 Flashing window light 15 • 3 Pandora's box 22 • 4 Cute little dog 28 • 5 Morse code machine 32 37 5.
1. About Crowbits Crowbits is a new type of STEAM education tool, it integrates traditional circuit modules into a LEGO-compatible block, which means you can build creative projects with our Crowbits and LEGO bricks. Compared with some electronic kits on the market, Crowbits is definitely worthy of “plug and play”, for it doesn’t require cables, tools or complex operations to connect them together. The magnetic snap on the side of these blocks allows you to connect these blocks together with the magnet.
The first stage-Crowbits no-coding kit includes more than 20 kinds of common sensors and modules, which means you can control all these modules without programming. When combined with carton papers or LEGO bricks, you can complete a creative project quickly. From these projects, kids can improve their hands-on ability, and meanwhile stimulate their imagination and creativity. Besides that, after knowing the logic of how these Crowbits blocks run, it’s helpful enough for kids to step into the coding world.
and drop. In addition, Letscode also supports other programming languages, like Python and Arduino IDE. Combining programming languages with various electronics, Crowbits provides a fun and effective way to learn code and electronics for students. The third stage-Crowbits application kit is more productized. With the no-coding kit, you can learn the basic knowledge of electronics and stimulate your creativity; with the coding kit, you can further discover the joy of electronics and programming.
2. Module list in the Hello Kit Crowbits-Power Supply Crowbits-IR reflective sensor Crowbits- touch sensor Crowbits-Light Sensor Crowbits-LED(Y) Crowbits-Buzzer Crowbits-NOT Magnetic Cable 3. Know the Crowbits module • 1. Structure of Crowbits Crowbits name: Crowbits consists of many types of TOP modules, so we marked the name for you to recognize easily. Crowbits name Magnetic snap Magnetic snap Sensor: The main component of Crowbits is placed there.
BACK LEGO compatible holes On the back of Crowbits, we have reserved 6 LEGO compatible holes, it’s easy to build creative projects with Crowbits and LEGO bricks together. The LEGO pin hole reserved on the side of Crowbits allows you to fix the module by LEGO pin. LEGO pin hole LEGO pin hole • 2. Color-coded by function Crowbits modules are divided into four different types, they are color-coded by function.
Output module (Green) Special modules(Orange) The output modules will do some operations, such as light up, vibrate when they receive a signal from input module. For some special modules (the interface is I2C or UART), we set the color to orange. • 3. Magnet connection Connection mode There are two ways for you to connect Crowbits together, it’s easy to connect Crowbits together by snapping them by magnet. Or you could also connect them by magnetic cable.
Connection rules A. A complete project must consist of power, input module and output module. The power supply module can be placed at will, whether on the left, on the right, or on the middle of input and output module. Make sure the name of module is facing up when connected. Pair of power+input+single output B. The sequence is important, Green is always on the right side of yellow, which means output modules must come after input modules. C.
D. We can also connect these modules in a complex way, each input module individually controls a single output module. Remember that the output module is only controlled by the nearest input module on the left. 4. Project tutorial No touching Project requirements: There are many place in life that are more dangerous, and children can not be brought into close contact, so we made an anti-touch warning device and placed it in a dangerous position.
Modules and accessories: Power Supply, Touch Sensor, Buzzer, carton paper plate, foil. Installation Steps 1.Unroll the paper mold that shows No touching 2.
3. Glue the tin foil to the triangle area of the paper mold. 4.Turn the paper mold 180 degrees The long piece of tin foil passes through the fine hole 180° 5. The paper die folds in the direction of folding Fold Fold Fold Fold 6.
7. Place the module in the carton 8. Close the note 9. Paste the tin foil onto the Touch module Fold 2 Fold 10.Close the carton Fold 11. Use paper clips to secure the carton 12 12.
Test: 1. When the hand touches the box, an alarm is issued; 2. Place the box in a place where you do not want others to touch. When someone touches, an alarm is issued to remind you. Introduction of required modules: In this project, the power module, Buzzer and Touch sensor module are used. The power module is the core part of the entire Crowbits module, and it can provide power to other modules. No matter what the project is, it needs the participation of the power module.
Touch module is a digital input module that can be used as a touch switch. When it is touched, the switch is turned on. The core part is a touch detection chip. When it is touched, it will output a logic high level. When it is not touched, it will only output a logic low level. The buzzer module is a digital output module. When receiving the input signal, it will make a sound. The buzzer is often used to prompt or alarm.
Buzzer is widely used in computer, printer, copier, alarm, electronic toy, automobile electronic equipment, telephone, timer and other electronic products as a sound device. Piezoelectric buzzers are used in musical greeting cards, electronic doorbells and electronic toys. Flashing window light Project requirements: Make a display window, the lights in the window can flicker incessantly. Using the characteristic of the IR reflective sensor, the high and low level can make the light on and off.
Required modules and materials: Power Supply, IR Reflective sensor, LED(Y), paper box, magnetic cable.
Installation Steps Step 1: Fold the window. 1-1. Lay the carton flat 1-2. Attach double-sided adhesive 1-3.
Step 2: Fold the bracket and rotating shaft. 2-1. Spread out the paper mold of the bracket and attach double-sided adhesive tape to the corresponding position Fold 2-2. Fold the paper die as shown Fold 2-3. Fold into the above shape Fold Fold 18 2-4.
2-5. Put the gear and the clip wheel on the stick 2-6. Place the stick on the bracket 2-7. Attach the bracket to the window 2-8.
2-9. Complete production Test: Rotate the stick, the lights flashes, then your window lamp model is successful, try to change the speed of rotating the stick, see the different effect.
Description of required modules: In this project, in addition to using the previous power module, two new modules are used here, respectively are LED and IR reflective modules. LED module is a module with LED light, it is controlled by the input module, according to the change of input signal to realize the LED light on and off. When a logic high level signal is input to the LED module, the light will be on. When a logic low-level signal is input to the LED module, the light will light off.
Applications in life Our common coffee machine, when the cup is placed in the water out, it can sense the existence of the cup, then open the coffee machine, the coffee comes into the cup automatically, do not need to manually control, is this convenient? Pandora's box Project requirements: make a magic Pandora's box. When the box is opened, it will turn on the light and the buzzer will beep. When the box is closed, the lights go out and the beeping stops.
Required modules and materials: Power Supply, Light sensor, LED (Y), logic NOT, cardboard, magnetic cable.
Installation method: 1. Spread out the Pandora's box 2. The shell of a support frame Fold Attach Tape 3. Fold the support frame and tape the area shown Fold 4. Post the support rack inside the carton Fold Fold Attach Tape 6. Fold into the shape shown on the diagram 5.
7. Place each module in the appropriate location 8. Connect the module with magnetic cable 9. Fold the lid of the box and fix it with a paper clip 10.
Test: turn on the power, when you open the cover of the Pandora box, the Pandora box makes a sound and light turns on. When the lid is closed, the sound stops and the light turns off. Description of required modules: In this project, in addition to the previous modules, logical NOT module and Light sensor module are also used. A logical NOT module is based on a logical not-gate, which performs an inverse operation on the input, the output and input states are always opposite.
The main component of the light sensor module is a photoresistor, which is a resistance changing with the light value, and its resistance value will decrease with the increase of the light intensity. It is an analog input module, which can control the output module or even the whole circuit according to the light intensity.
Cute little dog Requirements: Make a cute puppy that can interact and play with you and light up when you stroke its back. When you touch its head, it gives a buzzer warning. Finish this fun project and let your dog interact with you. Required modules and materials: Power Supply, Touch sensor, LED (Y), Buzzer, IR reflective sensor, cardboard, magnetic cable, tin foil.
Installation method: 1. Spread out the paper, cut out the tin foil to the size of the paper mold, and stick a long strip of tin foil for later use 2. Corresponding position paste double - sided 3. Folding carton 4.
5. Paste the tin foil on your back 6. Put the infrared reflection sensor module in the head 7. Connect the modules with magnetic cable 8.
9. Close the back cover and secure the paper clip 10. Finish assembly Fold Test: Put your hand on the dog's head, the dog makes a noise. When the hand touches the dog's back, the tail light comes on. Play with your dog now. Description of required modules: In this project, all the previous modules are reused, no more introduction will be made.
Morse code machine Project requirements: Morse code, is a kind of on-and-off signal code that expresses different English letters, numbers and punctuation marks in different order. Here we will build a Morse code translator to translate the contents of the paper with Morse code signals. Listen carefully and see if you can make sense of these Morse codes. Required modules and materials: Power Supply, Touch sensor, LED (Y), Buzzer, IR reflective sensor, cardboard, magnetic cable, tin foil.
Installation method: 1. Spread out the carton 2. Folding bracket 3.
4. Install the bracket and paste the double-sided 5. Folding carton tape on the area as the pic shown Fold Fold Fold Attach Tape 6. Fold into the shape shown above Fold 7.
8. Connect modules with magnetic cable 9. Fold the cover in place Fold 10.
Test: Place the code strip at the entrance of the machine, pull it out from the other end at a constant speed, and the Morse code machine makes a point and a continuous sound. Check the Morse code table and translate the signal to sentences. Description of required modules: In this Morse code machine project, all the previous modules are reused, and no more introductions will be made.
5. Common technical problems 1. When the power module is switched on, the indicator light is not on. • Use USB or A power adapter to charge the power module. 2. What if the module does not respond? • Check whether the input module is on the left side of the output module, and connect the module correctly according to the connection diagram of the module. • Adjust the position of the power module and check whether one side of the power module has bad contact.
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