Cellular IoT is a feasible solution that allows the pump operator and the possibility of fully automating the pump operation without manual assistance by using the Amazon network service uninstallation processing and accurate smartphone instrument board monitoring water level. Limitations of solutions.
TOP10: Home Appliance WiFi Switch Based on ESP8266 Module
Learn how to build your WiFi switch using the ESP module, and how to control any devices you like.
Now that we live in the IoT era, WiFi switches are basically its basis. They are devices that can be remotely or automatically open, close, or darkened to household appliances (such as lamps, fans, etc.), by our mobile phone, our sound, room temperature and even weather report control.
They allow them to connect to the Internet and process data based on wireless communication (commonly referred to as WIFI), so they can take action based on certain conditions established by the user.
Project Link: https://www.cirmall.com/circuit/12874#/details
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TOP9: [Foreign Open Source] STM32 Robot Visual Camera OpenMV CAM Design
The OpenMV project is designed to provide amateur and manufacturers with machine vision for amateurs and manufacturers by developing open source low-cost machine visual cameras. The OpenMV project successfully funded Kickstarter in 2015. The first generation of OpenMV cameras Based on STM's STM32F ARM Cortex-M MCU and OmniVision Ov7725 sensors. The OpenMV camera can be programmed in Python3 and attached to a large number of image processing functions, such as facial detection and tracking, key descriptors, colored spots tracking, qr, and barcode support, AprilTags, GIF, and MJPEG records, etc.
Project Link: https://www.cirmall.com/circuit/6500#/details
Be
TOP8: 3 gear speed, adjustment USB rechargeable portable fan design
Low cost, portable USB fan basic functions:
l speed control function: It is therefore there is a 3-speed boost voltage, a 5.5V, two gear 7.3V, three files 9.3V, and different voltage supply to the fan different speed.
l 3 speed wind speed display function, use 3 LED lights to display 3 wind speed
l Lithium battery charge function, suitable for 3.7 volts of lithium battery, charging cutoff voltage 4.2V accuracy +/- 1%, maximum charge current 600mA
l Lighting function: multiplex speed control buttons, long press the speed button S2 to turn the LED lighting function, maximum output 50mA.
Project Link: https://www.cirmall.com/circuit/6136#/details
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TOP7: 16-bit ADC Data Acquisition Module AD7606 (Schematic, Chinese Data Manual, routine, etc.)
AD7606 data acquisition module, 16-bit ADC, 8 channels simultaneously 200KHz frequency acquisition, 8 * 200k sample per second. SPI interface or 8080 16-bit parallel port, you can choose it.
AD7606 Data Acquisition Module Features:
l Use the AD7606 high-precision 16-bit ADC chip
l 8 analog input. Impedance 1m ohm. [No negative power supply, no front-end simulation op amp circuit, can directly receive the sensor output]
l The input range is 5V, and the positive and negative 10V. It can be used through the IO control range.
l Resolution 16 bits.
l The maximum sampling frequency is 200KSPS. Support 8 files over sampling settings (can effectively reduce jitter)
l built-in reference
l single 5V power supply
l SPI interface or 16-bit bus interface. Interface IO level can be 5V or 3.3V
Project Link: https://www.cirmall.com/circuit/5010#/details
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TOP6: STM32F407 Development Board Official Schematic + Firmware Library + Routine Details
The STM32F407 development board can interface the STM32F4 Discovery development board. STM32F4Discovery is a Cortex-M4 development board designed for high-performance STM32F4 series.
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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TOP5: Blheli S Electric Tonance Github Source Codes and Circuit Diagrams, etc.
The BLHELI_S electrical tone is based on EFM8BB21F16G and FD6288, and the PCB size is 2.5 cm × 5 cm. Firmware J, verified. The third edition is now updated.
Since the circuit has been constitutive, the project file of the original V2 is not changed.
Only two files BLS_J_V3.pcbdoc and BLS_J_V3 puzzles are added to the directory .pcbdoc
In addition, the deceleration and Blusuite software is overloaded.
Project Link: https://www.cirmall.com/circuit/9820#/details
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TOP4: P2P remote accessible camera with ESP32
A simple use case may be a low cost of you want to make standards, simple (secure) monitoring cameras. Standard Monitoring Camera usually comes with a large amount of software, and then supports by update, security repair, etc. Therefore, there is no higher security due to a small desktop / server size operating system and running service. But if this is not enough, low cost and small size should convince you.
We began to develop M5stack ESP32 CAM. It does not have additional external RAM, but there is a USB to the ESP32 UART, which makes the programming easier (you don't have to manually operate GPIO0 et al.)
Project Link: https://www.cirmall.com/circuit/12841#/details
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TOP3: 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
Be
TOP2: Arduino and Raspberry Pie Creating Chatbot Speech Control Robot Arm
There are many projects on making robotic arms on the Internet, but they have similar control methods, I feel missing! So we decided to make a robotic arm that can be controlled using a chat robot. If you say "moving to the left" and the arm will move according to your instruction, then it will be!
Hardware design is approximately based on the UARM schematic. It has a 5 degree movement. The servo motor used is 3 mg995 (metal gears) and 2 sg90 (silicon gears). Each servo motor requires a current of up to 1.5A, so the power supply is sufficient.
Arduino UNO is used as a controller with the Raspberry Pi. The function of Arduino is to continuously listen to the serial commands from the Raspberry Pi.
The software section contains the Python script of Arduino code and Raspberry Pi. The connection between Arduino and Raspberry Pi is connected via a serial cable.
Project Link: https://www.cirmall.com/circuit/12816#/details
Be
TOP1: Water level monitoring system based on honeycomb network
The water level monitoring of the top water tank in the residential, office and community water tank is mainly carried out by manual monitoring, and sometimes through a wired water level monitoring system. In most cases, the overflow can is a prompt of the pump operator to turn off the motor. In large residential areas and office buildings, people are hired to operate the motor around the clock. Wired solutions are not very reliable, short-range RF and Bluetooth wireless solutions do not transfer sensor data to the gateway to convert to operable information.
Cellular IoT is a feasible solution that allows the pump operator and the possibility of fully automating the pump operation without manual assistance by using the Amazon network service uninstallation processing and accurate smartphone instrument board monitoring water level. Limitations of solutions.
Project Link: https://www.cirmall.com/circuit/12786#/details
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