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esp8266-d1-mini-maxxfan-b [2023/12/10 09:07] – created mralvinesp8266-d1-mini-maxxfan-b [Unknown date] (current) – external edit (Unknown date) 127.0.0.1
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 +====== Wireless Module  for MaxxFan  (G6L-1P relays) ====== 
  
 +This module uses G6L-1P relays - and its design is inspired by [[https://www.youtube.com/watch?v=aS3BiYaEfiw&ab_channel=Everlanders|Everlanders Automation projects (video)]] ([[https://everlanders.com/2020/04/06/automation-arduino-and-blynk/|Project Home page]]), where a Wemos D1 mini wireless remote control option is added to the MaxxFan in the Everlander rig. 
 +
 +In the Everlander project G6L-1P relays are used, so this PCB also uses G6L-1P relays.
 +
 +----
 +   * Here is a [[esp8266-d1-mini-maxxfan-a|similar PCB design]], but it uses G6K-2P relays 
 +   * Here is a [[esp8266-d1-mini-8x-relay-shield-a|general PCB design]], that can hold up to 8 mini relays
 +
 +----
 +
 +**Project Status:** PCB design verify (rev.A1 - 2023 May 16)
 +
 +
 +Here are some screen shots: 
 +
 +   * TOP side
 +   * {{:wemos-d1-mini-esp8266:maxfan-module-b-top.jpg?400|}}
 +
 +   * Bottom Side
 +   * {{:wemos-d1-mini-esp8266:maxfan-module-b-bot.jpg?400|}}
 +
 +
 +//Notes about un-knowns://     
 +  * I do not know if the numbering (1-8) is similar to the actual MaxxFan. This needs verification.
 +  
 +Use the PCB viewer if you would like to see/test the entire copper path as it switches sides and/or connects to several solder points. 
 +   * Link to Free download of the [[https://www.electronic-software-shop.com/lng/en/support/free-viewer-software/?language=en|Sprint-layout Viewer program]]
 +   * {{:wemos-d1-mini-esp8266:relay-module-b.zip|The PCB design file}} (Status is: PCB UN-tested)
 +
 +**Chips:**
 +
 +//Miniature relay G6L-1P// 
 +
 +{{:wemos-d1-mini-esp8266:g6l-1p.jpg|}}
 +
 +Datasheet: {{ :wemos-d1-mini-esp8266:omron_g6l-1-relay.pdf |}}
 +
 +//ULN2803a Darlington Transistor Array//
 +
 +(Top View)
 +
 +{{:wemos-d1-mini-esp8266:uln2803.jpg?200|}}
 +
 +Datasheet: {{ :wemos-d1-mini-esp8266:uln2803a.pdf |}}