Sensor node not working without #define MyDebug

[delinend]

Here the output.

---

V=3726
F=89

---

The board name is: [Optiboot] Arduino Pro or Pro Mini (3.3V, 8 MHz) w/ ATmega328
As I use Optiboot bootloader.

##############################################################

pro328o.name=[Optiboot] Arduino Pro or Pro Mini (3.3V, 8 MHz) w/ ATmega328
pro328o.upload.tool=avrdude
pro328o.upload.protocol=arduino
pro328o.upload.maximum_size=32256
pro328o.upload.maximum_data_size=2048
pro328o.upload.speed=57600
pro328o.bootloader.tool=avrdude
pro328o.bootloader.low_fuses=0xff
pro328o.bootloader.high_fuses=0xde
pro328o.bootloader.extended_fuses=0xfd
pro328o.bootloader.file=optiboot/optiboot_atmega328.hex
pro328o.bootloader.unlock_bits=0x3F
pro328o.bootloader.lock_bits=0x0F
pro328o.build.mcu=atmega328p
pro328o.build.board=AVR_PRO
pro328o.build.f_cpu=8000000L
pro328o.build.core=arduino
pro328o.build.variant=eightanaloginputs

##############################################################

[tekka]

@delinend Ok, so you have a slightly higher voltage and frequency - this could cause some timing issues, since the sketch is compiled at 8Mhz. Can you feed 3.3V, e.g. using a voltage regulator?

[delinend]

@tekka
This is with my Lab Powersupply to 3.3V

---

V=3300
F=89

---

[tekka]

@delinend ok, and still the same with MY_DEBUG and the latest dev branch?

[delinend]

@tekka
Hmm.. It works fine without the delay(10), at 3.3V! But if I rice the voltage to around 3.6-3.7V, I have to add the delay(10) again in the void loop(). ?!?!

Btw. The nRF24l01+ is attached Vcc on the Arduino Mini Pro board.