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--- other:other [2024/07/08 08:11] – [Steps] formlab
+++ other:other [2026/03/13 02:49] (current) – [Docuwiki troubleshooting] formlab
@@ Line 174: / Line 174: @@
   * [[https://www.bol.com/be/nl/p/mini-nano-v3-0-atmega328p-microcontroller-bord-voor-arduino/9200000112027528/|Arduino nano]]
   * Radio receiver & transmitter set (433,92Mhz)
+    * Search on Amazon for something like '433MHz RF Wireless Transmitter & Receiver Module Kit for Arduino'
 ==== Info ====
@@ Line 313: / Line 314: @@
+===== Hygrometer reaction time =====
+I bought some cheap hygrometers from Amazon. Here's how quick they adapt to new humidity environments.
+**Saturation test**: I placed a hygrometer in a dry environment and at the start of the timer, I put it in a bag with a wet cloth in.
+At 12 minutes, the hygrometer shows 80% of the final humidity value.
+At 2 hours, the hygrometer shows 98% of the final humidity value.
+{{:other:hygrometer_saturation_plot.jpg|}}
+**Desaturation test**: I placed the hygrometer in a wet environment and at the start of the timer, I put it in a bag with known dry desiccant bags. This is an incomplete test, but it look the adaptation went faster.
+{{:other:hygrometer_desaturation_plot.jpg|}}
 ===== Docuwiki troubleshooting =====