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--- pitel:meshtastic [18. 06. 2025, 12.48:22] – [Links] RSS pitel
+++ pitel:meshtastic [31. 01. 2026, 12.15:29] (aktuální) – [Meshtastic] 18650 battery + case pitel
@@ Řádek 1: / Řádek 1: @@
 ====== Meshtastic ======
-{{ https://heltec.org/wp-content/uploads/2023/09/2.png?300}}
+ [[https://mesh.aperturelab.cz/user_Pitel.html|Moje nody]]
-  * Board: [[https://www.laskakit.cz/heltec-wifi-lora-32-v3-868mhz-0-96--wifi-modul|Heltec WiFi LoRa 32 V3.1 868Mhz 0.96" WiFi Modul]] 600 Kč
-    * Case: [[https://www.printables.com/model/741974-h1-case-for-heltec-v3-running-meshtastic|H1 - Case for Heltec V3 running Meshtastic]]
-    * Antenna: [[https://www.aliexpress.com/item/1005004607615001.html|Nb-iot /LORA Soft Antenna UAV wireless module Figure transmission data transmission 840-868-915-923-902-928mhz antenna SMA male (868MHz SMA M)]]
-===== Settings =====
+^ Node ^ Public key ^
-Stationary node in Brno
+| [[https://mesh.aperturelab.cz/node_a0caff30.html|Pitel]] | ''fJo381o7jfYU9s26aZCL5XxiA9oqkbiYkwnTR9vgBkc='' |
+| [[https://mesh.aperturelab.cz/node_db2fac00.html|Juli]] | ''Qg+uHTLGGkoWYnGls5Ykt4T0Q/zLteEW9S2aElptpjY='' |
+| [[https://mesh.aperturelab.cz/node_30035872.html|PiXi]] | ''f1rC4cXFqaoCKXqvMxeiHPkCiJ8GO+t3KtO3ekSsnHs='' |
+{{ https://mesh.aperturelab.cz/images/hardware/HELTEC_V3.png?300}}
+  * Board: [[https://www.laskakit.cz/heltec-wifi-lora-32-v3-868mhz-0-96--wifi-modul|Heltec v3]] 600 Kč
+    * Case: [[https://www.printables.com/model/741974-h1-case-for-heltec-v3-running-meshtastic|H1]], [[https://www.printables.com/model/797822-bender-battery-case-for-the-heltec-v3-heltec-t114|Bender]]
+    * Antenna: [[https://www.aliexpress.com/item/1005004607615001.html|Gizont]]
+    * 18650 battery + case
+===== Settings =====
   * ''EU_868''
   * MediumFast
-  * 2 hops
+  * 7 hops
+===== Solar =====
+{{ solar.jpg?400}}
+[[https://cad.onshape.com/documents/2199353cf44f151f31fe0125/w/46f3c84a9c5e38292e6463b8/e/e505b7e7db8f5da5379f8a8b?renderMode=0&uiState=692832792751421328d1a369|Onshape]]
+  * Seeed Studio Xiao nRF52840
+    * Be extra careful with soldering battery leads!
+    * Careful with brown-outs when voltage gets too low!
+    * Sometimes, it doesn't boot up correctly and reset button needs to be pressed.
+  * CN3791 MPPT charging board
+    * Xiao's charging circuit sucks and will cause brown-outs when powering through USB!
+    * TP4056 also sucks.
+  * 6V solar panel
+    * 5V is not enough!
+    * It needs a direct sunlight. It doesn't seem to work at all when shaded.
+    * One morning of sunlight fully charges the battery after one week without sunlight.
+  * 18650 battery
+    * Or any other 3,7 V lithium battery. 5 Ah pouch from old tablet is now in use. It kept running of 3-4 weeks without sunlight.
+    * What will happen in extreme (+50, -10 °C) temperatures? 🤔
+      * In freezing tempretures, capacity gets a bit lower, does not charge past 90-95 %
 ===== Links =====
   * https://meshtastic.org
     * [[https://flasher.meshtastic.org|Flasher]]
+    * [[https://github.com/meshtastic/firmware/releases|GitHub firmware releases]]
+    * [[https://github.com/meshtastic/Meshtastic-Android/releases|GitHub Android releases]]
   * [[https://czmesh.cz|Unofficial Czech Meshtastic community website]]
     * [[https://1drv.ms/w/s!ApNU8LuYDM_1j7EFGwATxzvi3n4UjQ?e=1XoWCJ|Guide]]

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