The smart car who started playing from the student era is also a new trick. It can manually draw the main idea of smart trolley is to control the route based on the network-based map to control the robot based on stepped motor. Plan the route with your finger on the screen, you can let the robotic car transport the goods to the destination ... Introduce so much, open the smart car new gameplay!
TOP10: SX1278 + STM32L431 low power high sensitivity ultra-long distance PCB four-layer board design
SX1278 + STM32L431 low power high sensitivity ultra-long distance
Adopting LDOs with XC6210 ultra low static currents to further reduce power consumption
Onboard IIC Temperature and Humidity Sensor SHT20
The PCB is four-layer plate, 30 mm * 40 mm 50 ohm impedance matching.
6 IO ports are taken out, four of which can be used as an ADC function.
The frequency is 470 MHz, the sealing network is strictly tested, and the distance test can reach 4.5km.
Attach the low-power consumption test program, 200 node network, conflict avoidance. Among them, CAD is received.
It is consumed that the standby current is 62ua, the current is 180mA, and the CAD receives the grip state current 21 mA.
Project Link: https://www.cirmall.com/circuit/12631#/details
Be
TOP9: RC522 RFID RF module (schematic + PCB + RC522 original code, etc.)
The use of the PHILIPS MFRC522 original chip design read card circuit, easy to use, low cost, suitable for users with advanced applications such as equipment development, card reader development, users who need to design / produce in RF card terminals. This module can be directly loaded into a variety of card reader molds. The module uses a voltage of 3.3V. You can directly connect communication with any CPU motherboard with the user through the SPI interface. You can ensure that the module is stable and reliable, and the card is far away;
Project Link: https://www.cirmall.com/circuit/2149#/details
Be
TOP8: Pony STM32 open source ROBOFLY four-axis aircraft schematic, PCB engineering, source code, 3D model file, etc.
Obofly is a small four-axis that the pony team introduced in August 2018.
The four-axis-oriented population is a college student in electronic related majors (including automation, electrical automation, electronic information engineering, computer, measurement and control, etc., through a complete four-axis project to learn the welding of the patch component device, PCB design software The use of AD, basic knowledge of circuit, the basic principle of rotor-type drone, STM32 single-chip programming and basic use, and the implementation of the flight control algorithm.
Project Link: https://www.cirmall.com/circuit/10211#/details
Be
TOP7: Arduino makes an Internet-based switch, intelligent control all house switches
In real life, we usually place the device in different regions (eg, light bulbs like different rooms). Controlling these devices is the buttons / switches installed locally.
Now you can control through smartphone applications, web browsers, etc. In this project, I just want to tell you how to make a simple centralized control panel. This means that you can sit in a room, all buttons / switches on the table, and use them to control anything else.
In fact, this type of application can be referred to as "Internet Switch", and the input information is forwarded through the TCP / IP network, and then the output control signal is based on those input information through the Internet.
Project Link: https://www.cirmall.com/circuit/12689#/details
Be
TOP6: USB turn TTL USB turn serial port DIY production
This USB turn TTL module mainly adopts the PL2303HX chip, 28 foot patch SOIC package, operating frequency is 12MHz, in line with the USB 2.0 communication protocol, can directly convert USB signals into serial port signals, baud rate range from 75 ~ 1228800, 22 kinds of wave The special rate can be selected, and support 5, 6, 7, 8, 16 of 5 data ratios, this module passes multiple complex environment test verification performance stable, first open source all the schematic and PCB source files and BOM tables and PL2303 drivers It is convenient for the majority of industrial control and single-chip fans to make their own DIY.
Project Link: https://www.cirmall.com/circuit/1905#/details
Be
TOP5: analog LED POV clock
The visual persistence (POV) display is usually an LED display that "display" image is "displayed" by quickly displaying a portion of the image at a given time. The human brain will deepen it as a continuous image display.
This relatively simple but visually effective simulated facial clock is displayed. Electronic components include Arduino Nano 17 LED diodes and Hall effect sensors. LED diode groups D1-D11, D12-D16 and D17 have different colors to achieve better visual effects. The device is powered by a lithium ion battery through a boost converter.
Project Link: https://www.cirmall.com/circuit/12583#/details
Be
TOP4: Smart Watch Based on STM32F051
Using the STM32F051 built-in RTC function, realize the clock display and the sedentary reminder (here only doing the screen vibration reminder, did not do a long-standing reminder); - MCU is a QFN package, small size, powerful, built-in RTC function, save clock chip
Using the MAX30102 heart rate sensor to achieve heart rate detection - small size, high accuracy
Using the MPU6050 six-axis sensor to implement step-by-digital detection - small size, good performance, support future more functional extensions
Using Si7020 temperature and humidity sensor to achieve real-time real-time detection - small size, high precision, widely used
Using the 1.3-inch OLED with the multi-channel touch button to implement information display, when not in use, automatic extinguishing - 1.3-inch OLED can display enough information, combined with button to implement display and control of various information
Using the XN297L wireless chip to achieve switch lights, doors, windows and other control functions - XN297L wireless chip module control simple (SPI interface), small size, straight distance, cost performance
Project Link: https://www.cirmall.com/circuit/12601#/details
Be
TOP3: Share your own PCB package library (Altium Designer)
Including yourself in a few years, there are 3D display, STM32 series has STM32F103C8, VE, ZE, F105VC, F107VC
In order not to increase trouble, directly open the "libpkg" project after decompression, the schematic package and the PCB package directly correspond to it, if the package is modified, the direct compilation project is good. In order to prevent errors, the 3D model is drawn in the machine 13 Layers, the method of adding 3D models is to open the package, switch to the mechanical layer, put the 3D body, after painting, you can change the color and height.
The method of adding someone else's package is to open the PCB to select a component, copy, open your own package, click on the list, paste.
Project Link: https://www.cirmall.com/circuit/3597#/details
Be
TOP2: Graduation Design Based on Single Chip Microcomputer
This graduation design mainly includes hardware and software, hardware end functions:
(1) Use the DS1302 module to generate clock data and implement time and calendar real-time display;
(2) Use the DS18B20 module to detect the surrounding ambient temperature and display in real time;
(3) Test the smoke and light in the room using the smoke and photosensitive sensor module;
(4) Automatic control function with RGB lamp and curtains;
(5) The infrared body induction is performed using the HC-RS501 module to prevent theft;
(6) Use buzzers and 12864 display to realize the sound and light anti-theft alarm function;
(7) Use the GSM module to achieve long-distance communication and SMS alarm function;
(8) Use the HC-06 Bluetooth module for mobile phone APP close-distance control.
The software mainly includes the design of the Android version app, and ultimately realizes the design of a single-chip microcomputer intelligent home control system.
Project Link: https://www.cirmall.com/circuit/12671#/details
Be
TOP1: Intelligent trail robot with ARDUINO to realize manual drawing route
The main idea is to control the rigor-based robots based on the network-based map, allowing the robotic trolley to transport the goods to the destination with your finger on the mobile screen. This is a simple trolley that does not use feedback sensors. Therefore, the position error will accumulate over time. The project can correct the position error by using a feedback sensor, thereby motivating someone to make a perfect carrier. This will be more convenient if it is combined with a routing algorithm such as a Dijkstra algorithm.
Project Link: https://www.cirmall.com/circuit/11249#/details
Our other product:
