EESchema Schematic File Version 4 EELAYER 30 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 3 8 Title "" Date "" Rev "" Comp "" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr $Comp L power:GND #PWR0107 U 1 1 5E7961BC P 8150 5250 F 0 "#PWR0107" H 8150 5000 50 0001 C CNN F 1 "GND" H 8155 5077 50 0000 C CNN F 2 "" H 8150 5250 50 0001 C CNN F 3 "" H 8150 5250 50 0001 C CNN 1 8150 5250 1 0 0 -1 $EndComp Wire Wire Line 8150 3150 8150 3250 Connection ~ 8150 3250 Wire Wire Line 8150 3250 8150 3350 $Comp L Device:C C5 U 1 1 5E79DE39 P 7900 3250 F 0 "C5" V 7648 3250 50 0000 C CNN F 1 "0.1u" V 7739 3250 50 0000 C CNN F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 7938 3100 50 0001 C CNN F 3 "~" H 7900 3250 50 0001 C CNN 1 7900 3250 0 1 1 0 $EndComp Wire Wire Line 8050 3250 8150 3250 $Comp L power:GND #PWR0108 U 1 1 5E7A0517 P 7650 3250 F 0 "#PWR0108" H 7650 3000 50 0001 C CNN F 1 "GND" V 7655 3122 50 0000 R CNN F 2 "" H 7650 3250 50 0001 C CNN F 3 "" H 7650 3250 50 0001 C CNN 1 7650 3250 0 1 1 0 $EndComp Wire Wire Line 7650 3250 7750 3250 Text GLabel 8850 4050 2 50 Input ~ 0 SCL Text GLabel 8850 4250 2 50 Input ~ 0 SDA $Comp L Motor:Fan_4pin M2 U 1 1 5E7B6632 P 10300 5850 F 0 "M2" H 10458 5946 50 0000 L CNN F 1 "Fan_4pin" H 10458 5855 50 0000 L CNN F 2 "Connector:FanPinHeader_1x04_P2.54mm_Vertical" H 10300 5860 50 0001 C CNN F 3 "http://www.formfactors.org/developer%5Cspecs%5Crev1_2_public.pdf" H 10300 5860 50 0001 C CNN 1 10300 5850 0 1 1 0 $EndComp $Comp L Motor:Fan_4pin M1 U 1 1 5E7BB603 P 9450 5850 F 0 "M1" H 9608 5946 50 0000 L CNN F 1 "Fan_4pin" H 9608 5855 50 0000 L CNN F 2 "Connector:FanPinHeader_1x04_P2.54mm_Vertical" H 9450 5860 50 0001 C CNN F 3 "http://www.formfactors.org/developer%5Cspecs%5Crev1_2_public.pdf" H 9450 5860 50 0001 C CNN 1 9450 5850 0 1 1 0 $EndComp Wire Wire Line 10700 5850 10700 5750 Wire Wire Line 10600 5850 10700 5850 Text GLabel 8150 3150 1 50 Input ~ 0 VCC Text GLabel 10700 5750 1 50 Input ~ 0 VCC Text GLabel 9850 5750 1 50 Input ~ 0 VCC Wire Wire Line 9850 5750 9850 5850 Wire Wire Line 9850 5850 9750 5850 $Comp L power:GND #PWR0109 U 1 1 5E7EE5DF P 9150 5950 F 0 "#PWR0109" H 9150 5700 50 0001 C CNN F 1 "GND" H 9155 5777 50 0000 C CNN F 2 "" H 9150 5950 50 0001 C CNN F 3 "" H 9150 5950 50 0001 C CNN 1 9150 5950 1 0 0 -1 $EndComp $Comp L power:GND #PWR0110 U 1 1 5E7EEEE0 P 10000 5950 F 0 "#PWR0110" H 10000 5700 50 0001 C CNN F 1 "GND" H 10005 5777 50 0000 C CNN F 2 "" H 10000 5950 50 0001 C CNN F 3 "" H 10000 5950 50 0001 C CNN 1 10000 5950 1 0 0 -1 $EndComp Wire Wire Line 9150 5950 9150 5850 Wire Wire Line 9150 5850 9250 5850 Wire Wire Line 10100 5850 10000 5850 Wire Wire Line 10000 5850 10000 5950 $Comp L MCU_Microchip_ATtiny:ATtiny24-20SSU U2 U 1 1 5E7FF5EB P 8150 4250 F 0 "U2" H 7621 4296 50 0000 R CNN F 1 "ATtiny24-20SSU" H 7621 4205 50 0000 R CNN F 2 "Package_SO:SOIC-14_3.9x8.7mm_P1.27mm" H 8150 4250 50 0001 C CIN F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/doc8006.pdf" H 8150 4250 50 0001 C CNN 1 8150 4250 1 0 0 -1 $EndComp Wire Wire Line 8150 5150 8150 5250 Text GLabel 8850 4850 2 50 Input ~ 0 VCC Wire Wire Line 8750 4850 8850 4850 Wire Wire Line 8750 4350 9350 4350 Wire Wire Line 9350 4350 9350 5550 Wire Wire Line 8750 4150 10200 4150 Wire Wire Line 10200 4150 10200 5550 Wire Wire Line 9550 5550 9550 3650 Wire Wire Line 9550 3650 8750 3650 Wire Wire Line 10400 5550 10400 3750 Wire Wire Line 10400 3750 8750 3750 Wire Wire Line 8750 4250 8850 4250 Wire Wire Line 8850 4050 8750 4050 NoConn ~ 8750 4750 NoConn ~ 8750 4650 NoConn ~ 8750 4550 NoConn ~ 8750 3950 NoConn ~ 8750 3850 $EndSCHEMATC