RS-485 Breakout
BOB-10124
Description: This is a breakout board for the SP3485 RS-485 transceiver IC, which will convert a UART serial stream to RS-485. The SP3485 is a half-duplex transceiver, so it can only communicate one way at a time, but it can reach transmission speeds of up to 10Mbps. This board requires a very low amount of power and can operate from a single +3.3V DC supply.
This bre...
Диммер Создаем на базе релейного блока с симмисторным выходом https://easyeda.com/Alex_AW/Rele_4in4out_rs485_din_SMD_copy-68ff5b701321441db7af0a9c7a22ec00
Для этого в схеме заменим оптосиммисторы с встроенным датчиком нуля на симмисторы без датчика. Добавим в схему датчик перехода через 0. Изменим печатную плату силового блока. И допишем программу добавив диммерные функции.
Подробное описание ре...
My first PCB design.
Includes placeholders for NodeMCU board, DS3231 RTC module, and RS485 serial converter module (based on MAX485 chip).
The program supposed to send serial strings over RS485 bus to a home control system, based on pre-set times.
Universal board for LED control.
- Atmega8/328 on board with programming connector
- PCA9685 for 16 channel PWM up to 1.5kHz (eye-safe frequency), 12 bits per channel
- cheap ULN2003 with paired outputs for 1A per channel (2-3 meters of RGB 5050 strip per connector)
- or SOT23 MOSFETs if you need more power
- BT05 bluetooth module or MAX485, control by wire or wireless. DMX512 is possible.
- pads...
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