This week's most popular circuit data is "Ruixin Micro RK3288 TV box circuit diagram and PCB Layout", Ruixin micro RK3288 has a ruling king, game king, super clear king's beauty, set a variety of advantages, is the world ARM new architecture kernel chip. This design shared is based on Rickfill Micro RK3288 TV box circuit diagram and PCB Layout, which is opened with ORCAD and PADS, respectively. At the same time, in order to facilitate netizens to view, it is transformed into PDF files at the same time.
TOP10: ARDUINO robot arm supporting mobile phone app control
In this tutorial, we will learn how to make an Arduino robot arm, which can wirelessly control and program with a customized Android application. I will show you the entire process of building it, print robotics from design and 3D, connect electronic components, and programming Arduino, to develop our own Android app to control the robot arm.
Project Link: https://www.cirmall.com/circuit/12916#/details
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TOP9: USB3.0 HUB 1 Drag 4 All Open Source
Since I need a lot of USB port, I specially made a HUB used. It is a relatively universal VIA VL812. The schematic is to use the official no change. It is still satisfactory that there is no incompatible thing. "Related Documents" simultaneously gives other users to USB3.0 HUB 1 drag 4 Layout, open with PADS9.5.
Project Link: https://www.cirmall.com/circuit/5785#/details
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TOP8: STM32F407 Development Board Official Schematic + Firmware + Routine Details
The development board is based on STM32F407VGT6 design. The development board also integrates the ST-LINK / V2 simulation downloader (but only external SWD interfaces), exempt from your additional purchase emulator or downloader. Added an acceleration sensor LIS302DL, digital microphone MP45DT02, speaker driver, and a Micro-AB USB interface.
Project Link: https://www.cirmall.com/circuit/6195#/details
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TOP7: How to extend a serial port to eight
In this tutorial, we will use Atlas Scientific's 8: 1 serial port extension to extend a single Arduino Uno UART (RX / TX) serial port to 8. The port of Arduino is connected to the expander, and the signal is then routed to eight ports connected to the peripheral device. For the sake of simplicity, we will use three ports, but just a few steps, you can use all eight ports using the extensions.
Project Link: https://www.cirmall.com/circuit/12930#/details
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TOP6: Based on STM32 SX1278 Transceree + Schematic, with SX1276 official website
The SX1276 / 78 transceiver mainly uses LORATM remote modem for super long distance spreading communication, strong anti-interference, and can minimize current consumption. With the LORATM patent modulation technique of Sundit, SX1276 / 77/78 uses low-cost crystals and materials to obtain high sensitivity of exceeding -148 dBm. In addition, the integration of high sensitivity and + 20dBM power amplifier makes the link budget of these devices reaches the industry leading level, making the best choice for long-distance transmission and high reliability requirements. Compared to traditional modulation technology, Loratm modulation technology also has a significant advantage in anti-blocking and selectivity, and solves the traditional design options that cannot be combined with distance, anti-interference and power consumption.
Project Link: https://www.cirmall.com/circuit/6310#/details
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TOP5: [2017 TV Festival National First Prize] B Sound Rolling Ball Control System
2017 Electronic Design Competition National First Prize B question Ball Control System Code Information, Source Code, Simple Note, [Provide VS Engineering Convenient Edit]. The ball control system hardware design includes MK60FN + OpenMV camera (no search, artifacts) + button + OLED, use the OpenMV camera, accurately identify the ball position, with a frame rate of 85 frames. The serial port transmitted data to K60, K60 is accurate in serial interrupt acquisition. The sphere rolling control system mechanical structure uses a universal steering gear + universal joint + tablet.
Project Link: https://www.cirmall.com/circuit/6896#/details
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TOP4: 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
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TOP3: Governance-based identification body sense control four-axis aircraft
This design is a four-axis aircraft controlled by a low-cost, high-precision, and full range of quick identification gestures, composed of four-axis aircraft and gesture controllers. The STM32F103C8T6 is used to control the core, and communication is performed by a 2.4G wireless communication module NRF24L01 with the MPU 6050 as a posture sensor. Choose the Kalman filter, the quad-element attitude, and the cascade PID will be attached to the PWM, drive 8520 hollow cup motor to implement design.
Project link: https://www.cirmall.com/circuit/12924#/details
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TOP2: Share your own PCB package library (Altium Designer)
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.
Project Link: https://www.cirmall.com/circuit/3597#/details
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TOP1: Ruixin RK3288 TV box circuit diagram and PCB LAYOUT
Ruixin micro RK3288 has a ruling king, game king, super clear king's beauty said, set a variety of advantages, is the world's first ARM new architecture kernel chip. RK3288 chips are widely used in high-end tablets, laptops, and intelligent monitoring of high performance application processors. Also, the TV box is also one of the powerful solutions based on RK3288. This design shared is based on Rickfill Micro RK3288 TV box circuit diagram and PCB Layout, which is opened with ORCAD and PADS, respectively. At the same time, in order to facilitate netizens to view, it is transformed into PDF files at the same time.
Project Link: https://www.cirmall.com/circuit/9398#/details
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