Use the Hongmeng development board to write code in the Linux environment and cooperate with the hardware to implement smart WiFi switches.
Customized acrylic shell, using M3 screws and copper pillars to assemble the PCB.
PCB_PCB_[Internet of Things] Smart WiFi Switch-Powered by Harmony_2022-09-23.json
3116 power amplifier has too many chip resistors and is not recommended for novices to operate.
Xiaolipai WIFI networked weather clock is a
commercial project promoted by small partners.
The finished kits are all available on Taobao. Links to finished products and accessories are available.
This open source is for players’ DIY communication and discussion only. All commercial activities are prohibited.
For further communication, QQ group 761503009 477140920
currently supports WIFI networking to automatically obtain address, weather, time, temperature and humidity, etc. More functions are waiting for you to add!
Current
configuration: ESP-12F 8266 core
screen: 240*240 1.33-inch high-resolution color screen
Environment: Arduino
interface: Type-c
Housing: 3D printing The light-curing
8266 core
code is written in Arduino, which is simple and easy to use.
SD Mini1.0_Business Edition.bin
3D.zip
How to use.zip
Finished product display.zip
Gerber_smaller__pcb_MINI_XLP_1.2 thick board drawing.zip
BOM download
PCB_smaller__pcb_MINI_XLP_2022-09-23.pdf
PCB_smaller__pcb_MINI_XLP_2022-09-23.json
smaller__pcb_MINI_XLP_2022-09-23.pcbdoc
Gerber_smaller__pcb_MINI_XLP_2022-09-23.zip
Schematic_SD Mini Xiaolipai TV-Let creativity no longer stop--Thanks to my friends_2022-09-23.pdf
SCH_SD Mini Xiaolipai TV-Let creativity no longer stop--Thanks to my friends_2022-09-23.json
Minitv_mini_xlp_2022-09-23.schdoc
61817
15v power amplifier walkman audio circuit
Introduction: The 15V powered Walkman uses a push-pull structure and uses a Vbe multiplier to optimize it.
The target is a Walkman audio power amplifier circuit powered by 15V. The input signal voltage is 0.2V and the output is 0.5W. The input port uses a sliding rheostat for volume adjustment. The common emitter amplifier circuit performs one-stage amplification. The NPN tube and the PNP tube work Push-pull output. Due to crossover distortion, a Vbe multiplier is used to eliminate the distortion effect.
Circuit video.mp4
BOM download
PCB_PCB_15v power amplifier_2022-09-23.pdf
PCB_PCB_15v power amplifier_2022-09-23.json
PCB_15v power amplifier_2022-09-23.pcbdoc
Gerber_PCB_15v power amplifier.zip
Schematic_15v power amplifier walkman audio circuit_2022-09-23.pdf
SCH_15v power amplifier walkman audio circuit_2022-09-23.json
15v power amplifier walkman audio circuit_2022-09-23.zip
61818
【Training Camp】Bionic Robot Dog
Introduction: Robot dog using OpenHarmony system
It is developed based on the OpenHarmony open source Hongmeng system. The chip used is hi3861, which supports 16-channel servo control, GPIO, ADC, PWM and other operations. It has realized the functions of the mechanical dog forward, backward, left turn, right turn, lie down and other functions. The chip Solution: Multi-channel servo control board product based on HiSilicon Hi3861 chip and PCA9685 Core parameters: Working voltage: 7.4V~20V With overheating and overcurrent protection Hardware interface: gpio, ADC, PWM Double-layer board design Single-sided layout pictures from all angles Come on
WeChat_20220703210304_Trim.mp4
BOM download
PCB_PCB_[Training Camp] Bionic Robot Dog_2022-09-23.pdf
PCB_PCB_[Training Camp] Bionic Robot Dog_2022-09-23.json
PCB_[Training Camp] Bionic Robot Dog_2022-09-23.pcbdoc
Gerber_PCB_[Training Camp] Bionic Robot Dog.zip
Schematic_[Training Camp] Bionic Robot Dog_2022-09-23.pdf
SCH_[Training Camp] Bionic Robot Dog_2022-09-23.json
Sheet_1_2022-09-23.schdoc
61819
[Verified] Microcontroller Register Experimental Board
Introduction: Simple model, verified, for learning microcontrollers
Original source: https://www.bilibili.com/video/BV1Lr4y137Yx?vd_source=f335c3f123a8402df4de1c9044154b31
Gerber_PCB_51 microcontroller storage experiment board 2022-06-13.zip
BOM download
PCB_PCB_51 microcontroller collection_2022-09-23.pdf
PCB_PCB_51 microcontroller collection_2022-09-23.json
PCB_51 microcontroller collection_2022-09-23.pcbdoc
Gerber_PCB_51 microcontroller collection_2022-09-23.zip
Schematic_[Verified] Microcontroller Register Experiment Board_2022-09-23.pdf
SCH_[Verified] Microcontroller Register Experiment Board_2022-09-23.json
Microcontroller register experiment board_2022-09-23.schdoc
61820
electronic
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