If you're using a Pi 5, then have a look at the PMIC ADC readout:Works fine on a Pi 4 power supply which is 3amp without PD. That is running from microSD. Some SSDs and disks stress that supply.what current does the Pi need when working without the monitor?
Should work from cheap block with 40watt for type C to Pi 5 and 15/20 watt for the screen that needs only 8 watt. But Pi power uses 5.1 volts instead of 5 volts to overcome cable resistance. Some cables have too much resistance to use ordinary power supplies.
Code:
andrew@tarmachan:~ $ vcgencmd pmic_read_adc 3V7_WL_SW_A current(0)=0.00000000A 3V3_SYS_A current(1)=0.08783370A 1V8_SYS_A current(2)=0.17859520A DDR_VDD2_A current(3)=0.02049453A DDR_VDDQ_A current(4)=0.00000000A 1V1_SYS_A current(5)=0.29082720A 0V8_SW_A current(6)=0.31815320A VDD_CORE_A current(7)=1.24127000A 3V3_DAC_A current(17)=0.00000000A 3V3_ADC_A current(18)=0.00000000A 0V8_AON_A current(16)=0.00409035A HDMI_A current(22)=0.01733820A 3V7_WL_SW_V volt(8)=3.75823800V 3V3_SYS_V volt(9)=3.32209700V 1V8_SYS_V volt(10)=1.80659200V DDR_VDD2_V volt(11)=1.11025500V DDR_VDDQ_V volt(12)=0.60915690V 1V1_SYS_V volt(13)=1.10769100V 0V8_SW_V volt(14)=0.80586010V VDD_CORE_V volt(15)=0.72151340V 3V3_DAC_V volt(20)=3.32600400V 3V3_ADC_V volt(21)=3.31867800V 0V8_AON_V volt(19)=0.80029220V HDMI_V volt(23)=5.13488000V EXT5V_V volt(24)=5.13890000V BATT_V volt(25)=0.00000000VStatistics: Posted by andrum99 — Sat Jul 13, 2024 9:57 am