Best posts made by jumping

Hello,
I'm working on two projects, both of them with RFM and NRF option: what do you think? Are the PCBs correct?

1. First PCB
   

Hello,
this is a sensor with BME280, 0.96" OLED display and a custom PCB with Arduino Pro Mini 3,3v.
THe PCB is about 5cmx5cm with TP4056 LIPO charger, voltage regulator, space for an antenna, as described here: https://forum.mysensors.org/topic/5314/pcbs-for-battery-based-sensor

A button turns on the display:

Here the PCB:

Hello,
yesterday I added a 0,1uF capacitor between 3,3V and GND pins and I tried 8 different step-up booster without success!

In the next days I will try different configurations to understand what is happening!

@anticimex You are too fast Now the CERN files are uploaded!!

1. PCB with SMD resistors and capacitors with LIPO module, arduino module and radio module

Hi,
the NRF24l01 doesn't have a RSSI function as reported in Nordic datasheet, so how can the signal report work?
thanks

thanks, next time I will use the github search function