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Automation for a tube amplifier
Sparrow Oct 22,2020
The system is based on the ATtiny26 microcontroller. The current measurement is performed indirectly across 1R resistors connected to the cathode circuit of the radio tube, as shown in Figure 2. In order not to significantly affect the operating point of the tube, the resistor should have a low resistance. The voltage corresponding to the current is amplified 10 times by the amplifiers U1 and fed to the analog-to-digital converter built into the microcontroller U2. The measurement result is disp...
turn-on delay tube amplifier
2201
0
4
Bidirectional WIFI-IR Gateway
Takacs Oct 14,2020
See project decription here: http://diy.viktak.com/2020/10/wifi-ir-gateway-a-k-a-give-your-dumb-old-devices-the-smarts.html
wifi ir infrared
3571
0
6
for security board
barış yalın Sep 26,2020
we designed for security board. that is the fourth version and we love pcbway to work.
security homeautomation
1273
0
1
4channel relay with esp8266
Aarya Gupta Aug 13,2020
Features:4 SPDT Relay channels (7A 250V,12A 120V,10A 125VAC, 10A 28VDC).Power supply:12VDC 2AMPCurrent consumption: 1A.LED indication for relay & power supply.Design based on highly proven IC ULN2803 as driver.Node MCU Firmware updated.High-quality PCB FR4 Grade with FPT Certified. ESP8266 Features:SDIO 2.0, SPI, UART32-pin QFN packageIntegrated RF switch, balun, 24dBm PA, DCXO, and PMUIntegrated RISC processor, on-chip memory and external memory interfacesIntegrated MAC/baseband p...
esp8266 iot home automation
2834
0
9
d-diot multi-purpose IoT pcb
Francesco Berghi Jul 18,2020
This small PCB (55×35) is born to be a general purpose solution for building any kind of compact wireless battery powered sensor or actuator based on MySensors, an ATMega328P (Arduino) and a RFM69 or NRF24 radio module.The main features of the pcb are:Small dimensions: 55 x 35 mmMultiple power options: 2 x AAA batteries or 1xAAA battery (Rechargeable or Alkaline), 1 x CR2032 battery, standard cellphone charger at 5V through the micro USB port or through Vin and GND pin of the MYSX connectorRever...
MySensors rfm69 nrf24
3077
0
0
d-diot battery powered Multisensors
Francesco Berghi Jul 17,2020
This battery powered multi-sensor is based on an ATMega328P MCU (Arduino) plus a radio module (NRF24L01 or RFM69) and provides the following functionalities:Motion detection (PIR AS312)Temperature detection (Si7021)Humidity detection (Si7021)Light detection (photoresistor) It is part of the d-diot project, so, as for any other device of the project, a detailed wiki page to build your own copy is available and you can download the model files of the 3d printable plastic case from thingiverse.The...
MySensors d-diot Home Assistant
2995
0
3
Make the Talking / Voice Notification Warning System
KILIC Jul 12,2020
This project we have made a Talking / Voice Notification and Warning System. At least two sensors can be used in this project. In this project, PIR sensor (The PIR Motion sensor module is an automatic control module based on infrared technology) and IR sensor (IR Infrared Obstacle Avoidance Sensor Module has a pair of infrared transmitting and receiving tubes). The DFPlayer Mini module was used to play audio files. (The DFPlayer Mini MP3 Player For Arduino is a small and low price MP3 module wit...
DIY Home Automation Robotic
6819
3
11
BrewPiLess and BrewManiacEX Common Control Board
Bryant Jul 06,2020
This is a consolidated circuit board that can be used to control either a DIY brew controller via BrewManiacEX or a DIY fermentation controller via BrewPiLess. For those of you that are unfamiliar with BrewManiacEX and BrewPiLess, they are both open-source applications designed to be used with the ESP-8266 wifi-enabled microcontrollers, such as the NodeMCU or Wemos D1 Mini. Both applications have intuitive web front-ends that allow for custom temperature control schedules, graphical temperatur...
Brewing Wemos D1
9725
5
7
ESP8266 Home Automation Controller
CSel May 26,2020
It's a basic board for hooking up six output devices and an analogue input. Each output has a few footprints extra for turning it into an input and selecting 3.3v or 12v supply pull-up.Easy to program with a very cheap ESP-01 USB adapter. The programming header has the same pinout as the ESP-01.
IoT Hassio HomeAssistant
2700
0
3
Automation for a tube amplifier
Sparrow May 18,2020
The system is based on the ATtiny26 [U2] microcontroller. The current measurement is performed indirectly across 1R resistors connected to the cathode circuit of the radio tube, as shown in Figure 2. In order not to significantly affect the operating point of the tube, the resistor should have a low resistance. The voltage corresponding to the current is amplified 10 times by the amplifiers U1 and fed to the analog-to-digital converter built into the microcontroller U2. The measurement result is...
amplifier tube amplifier
2445
0
6
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