Embedded TTL 3.3v drive relay - JohnHau/mis GitHub Wiki

https://www.aliexpress.com/w/wholesale-3.3v-relay-board.html https://forum.arduino.cc/t/looking-for-help-connecting-3-3v-gpio-to-either-3-3v-or-5v-relay/584872

https://www.quora.com/Can-I-trigger-a-5V-single-channel-relay-with-3-3V

https://www.sainsmart.com/products/8-channel-5v-relay-module

https://www.winford.com/products/rly304.php

https://learn.sparkfun.com/tutorials/logic-levels/all

https://www.ti.com/lit/ds/symlink/uln2003lv.pdf?ts=1677548300519&ref_url=https%253A%252F%252Fwww.google.com%252F

https://www.elementzonline.com/two-channel-2ch-12v-relay-board-controllable-with-3-3v-5v-for-raspberry-pi-arduino-avr-pic-8051-92 https://www.eevblog.com/forum/beginners/esp32-vs-5v-relay/

https://www.botnroll.com/en/digital/3394-8-channel-5v-relay-module-opto-isolated.html

http://www.icstation.com/channel-relay-module-relay-expansion-board-with-optocoupler-insulation-arduino-p-9665.html

http://www.handsontec.com/dataspecs/2Ch-relay.pdf

https://www.robotics.org.za/RELAY-4CH-33V

https://forums.ni.com/t5/Digital-I-O/USB6501-Digital-output-to-trigger-5vdc-relay/td-p/4197148

https://www.reddit.com/r/raspberry_pi/comments/y2tred/hello_very_beginner_question_here_i_accidently/

https://www.microchip.com/forums/m251667.aspx

https://www.instructables.com/DIY-4-Channel-Bi-directional-Logic-Level-Converter/

https://kno.wled.ge/features/relay-control/

https://forum.pjrc.com/threads/62961-Teensy-4-1-Swiching-5V-with-3-3V-pin-Transistor

https://numato.com/product/16-channel-usb-relay-module/

https://www.bipom.com/products/us/4386269.html

https://www.makerfabs.com/4-relay-module-30a.html

https://ca.robotshop.com/products/gravity-single-relay-module

https://www.superdroidrobots.com/store/robot-parts/electrical-parts/discrete-components/high-current-drivers/product=1912 https://forums.raspberrypi.com/viewtopic.php?t=222146

https://www.diyelectronics.co.za/store/solid-state-relays/3654-1-channel-33v-to-10v-mosfet-relay-module-20a36v.html

https://www.digital-loggers.com/plc49hw.html

https://dac.ge/en/?category=33&subcategory=153

https://www.analog.com/media/en/technical-documentation/data-sheets/MAX4896.pdf

https://www.mouser.com/c/semiconductors/power-management-ics/gate-drivers/?product=Relay%20Drivers

https://www.elecbee.com/ar-526-electronic-module?limit=80&sort=p.sort_order&order=ASC&page=11

https://next-hack.com/index.php/2020/02/15/how-to-interface-a-3-3v-output-to-a-5v-input/

https://maker.pro/forums/threads/logic-level-relays.3681/

https://tinkersphere.com/arduino-compatible-components/149-5v-relay-module-arduino-compatible.html

https://www.ebay.com/itm/402993384551

https://core-electronics.com.au/kit-relay-board-3-3v.html

https://wiki.dfrobot.com/Gravity:%20Digital%2016A%20Relay%20Module%20V2.0%20SKU%20DFR0251

https://whadda.com/product/3-3-v-5-v-ttl-logic-level-converter-module-wpi410/

https://www.intelligent-appliance.com/newsitem.aspx?id=37

https://www.lazada.com.ph/products/4-bit-relay-module-optocoupler-isolation-dc-33v-24v-ttl-amplifier-board-mcu-drive-compatible-with-npnpnp-i3441758525.html

https://www.hicomponent.com/usb-to-ttl-serial-converter-3.3v-5v-rs232-to%20ttl%20converter.html

https://adiy.in/shop/breakout-boards/relay-boards/5v-dual-channel-relay-module/

https://www.makerlab-electronics.com/product/8-channel-5v-relay-module/

https://www.sealevel.com/product-category/accessories/relay-racks-relays/

https://forum.allaboutcircuits.com/threads/looking-for-ttl-relay-board.153855/

http://store.logicneed.com/product/1457

https://www.digikey.com/en/products/filter/solid-state-relays/183

https://www.digchip.com/datasheets/5483137-uln2003lv.html

https://arduinomodules.info/ky-019-5v-relay-module/

https://datasheet.octopart.com/FAN3180TSX-Fairchild-Semiconductor-datasheet-86701620.pdf

https://my.element14.com/texas-instruments/uln2003lvdr/relay-driver-sink-0-14a-soic-16/dp/3118992

https://eckstein-shop.de/Module-Relay-EN

https://www.minicircuits.com/pdfs/USB-IO-16D8R.pdf

http://archive.communica.co.za/Catalog/Browse?cId=de45861af6df405aaa7cd4c92ff505f6 https://www.electronics-lab.com/community/index.php?/topic/47824-555-timer-relay-driver-with-ttl-input/

https://www.esp8266.com/viewtopic.php?f=160&t=15262

https://sharvielectronics.com/product/8-channel-5v-relay-module-with-optocoupler/

https://community.particle.io/t/how-to-drive-a-relay-that-is-100-feet-away/54418

https://www.letscontrolit.com/forum/viewtopic.php?t=3096

https://www.petervis.com/Raspberry_PI/Driving_Relays_with_CMOS_and_TTL_Outputs/Driving_Relays_with_CMOS_and_TTL_Outputs.html

https://www.netram.co.za/relays/8932-4-channel-5v-relay-module.html

https://arduinodiy.wordpress.com/2012/05/02/using-mosfets-with-ttl-levels/

https://forums.parallax.com/discussion/139893/has-anyone-used-any-relays-from-sainsmart

https://www.techiesms.com/product/5v-dual-channel-relay-module/

https://www.futurlec.com/Power_Relay_Mini_Board.shtml

https://www.codrey.com/electronic-circuits/universal-relay-module/

https://www.esp32.com/viewtopic.php?t=4925

https://estore.geoesindia.com/moduleboards-c-17/relayswitchmodule-c-96/12vrelaymodule8channelwithuln2803driver-p-235

https://componentcart.com/product/5v-dual-channel-relay-module-adiy

https://hackaday.com/2016/12/05/taking-it-to-another-level-making-3-3v-and-5v-logic-communicate-with-level-shifters/