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Last update 2 years 6 months by shota
Files
ESP12-STM32-cache.lib
ESP12-STM32-rescue.dcm
ESP12-STM32-rescue.lib
ESP12-STM32.kicad_pcb
ESP12-STM32.kicad_pcb-bak
ESP12-STM32.pro
ESP12-STM32.sch
ESP12-STM32.sch-bak
README.md
fp-info-cache
fp-lib-table
sym-lib-table
ESP12-STM32.sch-bak
EESchema Schematic File Version 4 EELAYER 30 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 1 1 Title "" Date "" Rev "" Comp "" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr $Comp L ESP12-STM32-rescue:ESP-12S-ESP-12S U2 U 1 1 5F4F72D3 P 8500 3350 F 0 "U2" H 8500 2650 50 0000 C CNN F 1 "ESP-12S" H 8500 2550 50 0000 C CNN F 2 "ESP-12S:ESP-12S" H 8500 3350 50 0001 L BNN F 3 "IC-14115" H 8500 3350 50 0001 L BNN 1 8500 3350 1 0 0 -1 $EndComp $Comp L Device:R R10 U 1 1 5F4F7B77 P 9650 1150 F 0 "R10" H 9720 1196 50 0000 L CNN F 1 "100k" H 9720 1105 50 0000 L CNN F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 9580 1150 50 0001 C CNN F 3 "~" H 9650 1150 50 0001 C CNN 1 9650 1150 1 0 0 -1 $EndComp $Comp L Device:R R11 U 1 1 5F4F81EE P 10000 1150 F 0 "R11" H 10070 1196 50 0000 L CNN F 1 "10k" H 10070 1105 50 0000 L CNN F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 9930 1150 50 0001 C CNN F 3 "~" H 10000 1150 50 0001 C CNN 1 10000 1150 1 0 0 -1 $EndComp $Comp L Device:R R12 U 1 1 5F4F84BF P 10300 1150 F 0 "R12" H 10370 1196 50 0000 L CNN F 1 "100k" H 10370 1105 50 0000 L CNN F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 10230 1150 50 0001 C CNN F 3 "~" H 10300 1150 50 0001 C CNN 1 10300 1150 1 0 0 -1 $EndComp $Comp L Device:R R13 U 1 1 5F4F8709 P 10350 2600 F 0 "R13" H 10420 2646 50 0000 L CNN F 1 "10k" H 10420 2555 50 0000 L CNN F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 10280 2600 50 0001 C CNN F 3 "~" H 10350 2600 50 0001 C CNN 1 10350 2600 1 0 0 -1 $EndComp $Comp L Device:R R7 U 1 1 5F4F889A P 7850 3350 F 0 "R7" V 7643 3350 50 0000 C CNN F 1 "R" V 7734 3350 50 0000 C CNN F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 7780 3350 50 0001 C CNN F 3 "~" H 7850 3350 50 0001 C CNN 1 7850 3350 0 1 1 0 $EndComp $Comp L Device:C C4 U 1 1 5F4FABA0 P 8250 2500 F 0 "C4" V 7998 2500 50 0000 C CNN F 1 "100nF" V 8089 2500 50 0000 C CNN F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 8288 2350 50 0001 C CNN F 3 "~" H 8250 2500 50 0001 C CNN 1 8250 2500 0 1 1 0 $EndComp $Comp L Device:R R8 U 1 1 5F4FBD00 P 8200 1100 F 0 "R8" H 8270 1146 50 0000 L CNN F 1 "10k" H 8270 1055 50 0000 L CNN F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 8130 1100 50 0001 C CNN F 3 "~" H 8200 1100 50 0001 C CNN 1 8200 1100 1 0 0 -1 $EndComp $Comp L Device:R R9 U 1 1 5F4FBFAF P 8200 1500 F 0 "R9" H 8270 1546 50 0000 L CNN F 1 "20k" H 8270 1455 50 0000 L CNN F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 8130 1500 50 0001 C CNN F 3 "~" H 8200 1500 50 0001 C CNN 1 8200 1500 1 0 0 -1 $EndComp Wire Wire Line 7200 1400 7200 1500 Wire Wire Line 7300 1400 7300 1500 Text Label 7200 1500 2 50 ~ 0 VCC Text Label 7300 1500 0 50 ~ 0 GND Wire Wire Line 10350 2450 10350 2350 Text Label 10350 2350 0 50 ~ 0 VCC Wire Wire Line 10350 3350 10350 3400 Text Label 10350 3400 3 50 ~ 0 GND Wire Wire Line 10350 2750 10350 2950 Wire Wire Line 8100 3050 7900 3050 Text Label 7900 3050 0 50 ~ 0 RST Text Label 10350 2850 0 50 ~ 0 RST Wire Wire Line 8100 3350 8000 3350 Text Label 7600 3350 0 50 ~ 0 VCC Wire Wire Line 7600 3350 7700 3350 $Comp L Connector:Screw_Terminal_01x02 J3 U 1 1 5F4FA2DA P 7200 1200 F 0 "J3" V 7118 1012 50 0000 R CNN F 1 "Screw_Terminal_01x02" V 7073 1012 50 0001 R CNN F 2 "TerminalBlock:TerminalBlock01x02" H 7200 1200 50 0001 C CNN F 3 "~" H 7200 1200 50 0001 C CNN 1 7200 1200 0 -1 -1 0 $EndComp $Comp L Connector:Conn_01x03_Male J4 U 1 1 5F50C395 P 8550 1300 F 0 "J4" V 8658 1112 50 0000 R CNN F 1 "Conn_01x03_Male" V 8613 1112 50 0001 R CNN F 2 "Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical" H 8550 1300 50 0001 C CNN F 3 "~" H 8550 1300 50 0001 C CNN 1 8550 1300 0 -1 -1 0 $EndComp Wire Wire Line 8450 1100 8450 900 Wire Wire Line 8550 1100 8550 900 Wire Wire Line 8650 1100 8650 900 Text Label 8650 900 0 50 ~ 0 GND Text Label 9100 2750 0 50 ~ 0 ESP_Tx Text Label 9100 2850 0 50 ~ 0 ESP_Rx Wire Wire Line 8450 900 8200 900 Wire Wire Line 8200 900 8200 950 Wire Wire Line 8200 1250 8200 1350 Wire Wire Line 8200 1650 8200 1750 Text Label 8200 1750 0 50 ~ 0 GND Wire Wire Line 8900 2950 9100 2950 Wire Wire Line 8900 3050 9100 3050 Wire Wire Line 8900 3150 9100 3150 Wire Wire Line 8900 3250 9100 3250 Wire Wire Line 8900 3350 9100 3350 Wire Wire Line 8900 3450 9100 3450 Wire Wire Line 8900 3550 9100 3550 Wire Wire Line 8900 3650 9100 3650 Wire Wire Line 8900 3750 9100 3750 Wire Wire Line 8900 3850 9100 3850 Text Label 9100 2950 0 50 ~ 0 ADC Text Label 9100 3050 0 50 ~ 0 PIN16 Text Label 9100 3150 0 50 ~ 0 PIN15 Text Label 9100 3250 0 50 ~ 0 PIN14 Text Label 9100 3350 0 50 ~ 0 PIN13 Text Label 9100 3450 0 50 ~ 0 PIN12 Text Label 9100 3550 0 50 ~ 0 PIN5 Text Label 9100 3650 0 50 ~ 0 PIN4 Text Label 9100 3750 0 50 ~ 0 PIN2 Text Label 9100 3850 0 50 ~ 0 PIN0 Wire Wire Line 10300 1000 10300 900 Wire Wire Line 10000 1000 10000 900 Wire Wire Line 9650 1000 9650 900 Text Label 10300 900 0 50 ~ 0 VCC Wire Wire Line 10300 1950 10300 1900 Wire Wire Line 10300 1500 10300 1300 Text Label 10300 1400 0 50 ~ 0 PIN0 Text Label 10000 900 0 50 ~ 0 PIN15 Wire Wire Line 10000 1300 10000 1600 Wire Wire Line 9650 1300 9650 1600 Text Label 10000 1600 0 50 ~ 0 GND Text Label 9650 1600 0 50 ~ 0 VCC Text Label 9650 900 0 50 ~ 0 PIN2 $Comp L Device:C C1 U 1 1 5F50C2BC P 2750 850 F 0 "C1" V 2498 850 50 0000 C CNN F 1 "0.1uF" V 2589 850 50 0000 C CNN F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 2788 700 50 0001 C CNN F 3 "~" H 2750 850 50 0001 C CNN 1 2750 850 0 1 1 0 $EndComp Text Label 2900 850 0 50 ~ 0 GND $Comp L Device:R R2 U 1 1 5F52068D P 1800 1300 F 0 "R2" V 1700 1350 50 0000 L CNN F 1 "10k" V 1700 1200 50 0000 L CNN F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 1730 1300 50 0001 C CNN F 3 "~" H 1800 1300 50 0001 C CNN 1 1800 1300 0 1 1 0 $EndComp Text Label 1650 1300 2 50 ~ 0 GND Wire Notes Line 10100 2200 10700 2200 Wire Notes Line 10700 2200 10700 3550 Wire Notes Line 10700 3550 10100 3550 Wire Notes Line 10100 3550 10100 2200 Text Notes 10500 2150 0 50 ~ 0 Reset\n Wire Notes Line 10700 700 10700 2050 Wire Notes Line 9300 2050 9300 700 Wire Notes Line 9300 700 10700 700 Wire Notes Line 9300 2050 10700 2050 Text Notes 9800 650 0 50 ~ 0 Flash Boot/UART Modes Wire Notes Line 8950 700 8950 1950 Wire Notes Line 8950 1950 7900 1950 Wire Notes Line 7900 1950 7900 700 Wire Notes Line 7900 700 8950 700 Text Notes 8400 650 0 50 ~ 0 UART PIN OUT Wire Notes Line 7700 700 7700 1750 Wire Notes Line 7700 1750 6800 1750 Wire Notes Line 6800 1750 6800 700 Wire Notes Line 6800 700 7700 700 Text Notes 7250 650 0 50 ~ 0 Power Input Text Label 8400 2500 0 50 ~ 0 GND Wire Wire Line 7900 2750 8100 2750 Wire Wire Line 8100 2500 8100 2750 Connection ~ 8100 2750 $Comp L Connector:Conn_01x04_Male J1 U 1 1 5F551794 P 2650 4950 F 0 "J1" V 2758 4662 50 0000 R CNN F 1 "Conn_01x04_Male" V 2713 4662 50 0001 R CNN F 2 "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical" H 2650 4950 50 0001 C CNN F 3 "~" H 2650 4950 50 0001 C CNN 1 2650 4950 0 -1 -1 0 $EndComp Wire Wire Line 2550 4750 2550 4500 Wire Wire Line 2650 4750 2650 4500 Wire Wire Line 2750 4750 2750 4500 Wire Wire Line 2850 4750 2850 4500 Text Label 2550 4500 3 50 ~ 0 SWCLK Text Label 2650 4500 3 50 ~ 0 SWDIO Text Label 2850 4500 3 50 ~ 0 GND Text Label 2750 4500 3 50 ~ 0 VCC2 Text Label 8200 1300 0 50 ~ 0 Tx Text Label 8550 900 0 50 ~ 0 Rx Wire Wire Line 8900 2750 9850 2750 Wire Wire Line 8900 2850 9850 2850 Text Label 9850 2750 2 50 ~ 0 Rx Text Label 9850 2850 2 50 ~ 0 Tx $Comp L Device:Crystal Y1 U 1 1 5F519344 P 2850 3400 F 0 "Y1" H 2850 3668 50 0000 C CNN F 1 "Crystal" H 2850 3577 50 0000 C CNN F 2 "Crystal:Crystal_SMD_HC49-SD_HandSoldering" H 2850 3400 50 0001 C CNN F 3 "~" H 2850 3400 50 0001 C CNN 1 2850 3400 1 0 0 -1 $EndComp $Comp L Device:C C2 U 1 1 5F519FB5 P 2450 3650 F 0 "C2" V 2198 3650 50 0000 C CNN F 1 "22pF" V 2289 3650 50 0000 C CNN F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 2488 3500 50 0001 C CNN F 3 "~" H 2450 3650 50 0001 C CNN 1 2450 3650 -1 0 0 1 $EndComp $Comp L Device:C C3 U 1 1 5F51A491 P 3300 3650 F 0 "C3" V 3048 3650 50 0000 C CNN F 1 "22pF" V 3139 3650 50 0000 C CNN F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 3338 3500 50 0001 C CNN F 3 "~" H 3300 3650 50 0001 C CNN 1 3300 3650 -1 0 0 1 $EndComp Wire Wire Line 3300 3500 3300 3400 Wire Wire Line 3300 3400 3000 3400 Wire Wire Line 2700 3400 2450 3400 Wire Wire Line 2450 3400 2450 3500 Text Label 2450 3800 0 50 ~ 0 GND Text Label 3300 3800 0 50 ~ 0 GND Text Label 2450 3400 0 50 ~ 0 PC14 Text Label 3150 3400 0 50 ~ 0 PC15 $Comp L Device:R R1 U 1 1 5F52126F P 800 3500 F 0 "R1" H 870 3546 50 0000 L CNN F 1 "10K" H 870 3455 50 0000 L CNN F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 730 3500 50 0001 C CNN F 3 "~" H 800 3500 50 0001 C CNN 1 800 3500 1 0 0 -1 $EndComp Wire Wire Line 800 3100 800 3350 Text Label 800 3100 0 50 ~ 0 VCC Text Label 800 4550 0 50 ~ 0 GND Text Label 800 3800 0 50 ~ 0 PA0 $Comp L Transistor_FET:AO3401A Q1 U 1 1 5F527B1F P 7850 4250 F 0 "Q1" H 8055 4296 50 0000 L CNN F 1 "AO3401A" H 8055 4205 50 0000 L CNN F 2 "Package_TO_SOT_SMD:SOT-23" H 8050 4175 50 0001 L CIN F 3 "http://www.aosmd.com/pdfs/datasheet/AO3401A.pdf" H 7850 4250 50 0001 L CNN 1 7850 4250 1 0 0 -1 $EndComp Wire Wire Line 7950 4050 7950 3850 Wire Wire Line 7950 3850 8100 3850 $Comp L Device:R R5 U 1 1 5F52CE6B P 7400 4250 F 0 "R5" V 7193 4250 50 0000 C CNN F 1 "3.3k" V 7284 4250 50 0000 C CNN F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 7330 4250 50 0001 C CNN F 3 "~" H 7400 4250 50 0001 C CNN 1 7400 4250 0 1 1 0 $EndComp Wire Wire Line 7650 4250 7600 4250 $Comp L Device:R R6 U 1 1 5F52F318 P 7600 4450 F 0 "R6" V 7393 4450 50 0000 C CNN F 1 "47k" V 7484 4450 50 0000 C CNN F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 7530 4450 50 0001 C CNN F 3 "~" H 7600 4450 50 0001 C CNN 1 7600 4450 -1 0 0 1 $EndComp Wire Wire Line 7600 4300 7600 4250 Connection ~ 7600 4250 Wire Wire Line 7600 4250 7550 4250 Wire Wire Line 7950 4450 7950 4650 Wire Wire Line 7950 4650 7600 4650 Wire Wire Line 7600 4650 7600 4600 Text Label 7800 4650 0 50 ~ 0 GND Text Label 7250 4250 2 50 ~ 0 PA4 $Comp L Device:R R4 U 1 1 5F538277 P 7000 2350 F 0 "R4" H 7070 2396 50 0000 L CNN F 1 "220R" H 7070 2305 50 0000 L CNN F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 6930 2350 50 0001 C CNN F 3 "~" H 7000 2350 50 0001 C CNN 1 7000 2350 1 0 0 -1 $EndComp $Comp L Device:LED D1 U 1 1 5F538B70 P 7000 2750 F 0 "D1" V 7039 2632 50 0000 R CNN F 1 "LED" V 6948 2632 50 0000 R CNN F 2 "LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 7000 2750 50 0001 C CNN F 3 "~" H 7000 2750 50 0001 C CNN 1 7000 2750 0 -1 -1 0 $EndComp Wire Wire Line 7000 2600 7000 2500 Text Label 7000 2200 0 50 ~ 0 VCC Text Label 7000 2900 3 50 ~ 0 GND Wire Notes Line 6800 2050 7350 2050 Wire Notes Line 7350 2050 7350 3250 Wire Notes Line 7350 3250 6800 3250 Wire Notes Line 6800 3250 6800 2050 Text Notes 6900 2000 0 50 ~ 0 Power Indication\n $Comp L Device:LED D2 U 1 1 5F549E90 P 10350 4550 F 0 "D2" V 10389 4432 50 0000 R CNN F 1 "LED" V 10298 4432 50 0000 R CNN F 2 "LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 10350 4550 50 0001 C CNN F 3 "~" H 10350 4550 50 0001 C CNN 1 10350 4550 0 -1 -1 0 $EndComp $Comp L Device:R R14 U 1 1 5F54AD00 P 10350 4100 F 0 "R14" H 10420 4146 50 0000 L CNN F 1 "220" H 10420 4055 50 0000 L CNN F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 10280 4100 50 0001 C CNN F 3 "~" H 10350 4100 50 0001 C CNN 1 10350 4100 1 0 0 -1 $EndComp Wire Wire Line 10350 4250 10350 4400 Text Label 10350 4700 3 50 ~ 0 GND Text Label 10350 3950 0 50 ~ 0 PIN13 Wire Notes Line 10100 3800 10750 3800 Wire Notes Line 10750 3800 10750 4950 Wire Notes Line 10750 4950 10100 4950 Wire Notes Line 10100 4950 10100 3800 Text Notes 10550 3750 0 50 ~ 0 GPIO\n Text Label 10300 1950 3 50 ~ 0 GND $Comp L Device:R R3 U 1 1 5F579D10 P 1450 3500 F 0 "R3" H 1520 3546 50 0000 L CNN F 1 "10K" H 1520 3455 50 0000 L CNN F 2 "Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder" V 1380 3500 50 0001 C CNN F 3 "~" H 1450 3500 50 0001 C CNN 1 1450 3500 1 0 0 -1 $EndComp Text Label 1450 3100 0 50 ~ 0 VCC Text Label 1450 4550 0 50 ~ 0 GND Wire Wire Line 1450 3100 1450 3350 Text Label 1450 3750 0 50 ~ 0 NRST Wire Notes Line 1250 2950 1850 2950 Wire Notes Line 1850 2950 1850 4650 Wire Notes Line 1850 4650 1250 4650 Wire Notes Line 1250 4650 1250 2950 Wire Notes Line 550 2950 1150 2950 Wire Notes Line 1150 2950 1150 4650 Wire Notes Line 1150 4650 550 4650 Wire Notes Line 550 4650 550 2950 Wire Notes Line 2300 3050 3650 3050 Wire Notes Line 3650 3050 3650 4150 Wire Notes Line 3650 4100 2300 4100 Wire Notes Line 2300 4100 2300 3000 Wire Notes Line 3100 4300 3100 5050 Wire Notes Line 3100 5050 2300 5050 Wire Notes Line 2300 5050 2300 4300 Wire Notes Line 2300 4300 3100 4300 Text Notes 600 2900 0 50 ~ 0 Wakeup Button\n Text Notes 1400 2900 0 50 ~ 0 Reset Button\n Text Notes 2750 4250 0 50 ~ 0 JTAG\n Text Notes 3400 2950 0 50 ~ 0 Crystal\n $Comp L Connector:Conn_01x04_Male J2 U 1 1 5F5B0C6A P 4700 1250 F 0 "J2" V 4854 962 50 0000 R CNN F 1 "Conn_01x04_Male" V 4763 962 50 0000 R CNN F 2 "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical" H 4700 1250 50 0001 C CNN F 3 "~" H 4700 1250 50 0001 C CNN 1 4700 1250 0 -1 -1 0 $EndComp Text Label 4700 1050 1 50 ~ 0 VCC Text Label 4800 1050 1 50 ~ 0 VCC Text Label 4900 1050 1 50 ~ 0 VCC1 Text Label 4600 1050 1 50 ~ 0 VCC2 Text Label 7900 2750 0 50 ~ 0 VCC1 Wire Notes Line 5200 750 5200 1550 Wire Notes Line 5200 1550 4250 1550 Wire Notes Line 4250 1550 4250 750 Wire Notes Line 4250 750 5200 750 Text Notes 4500 700 0 50 ~ 0 Power Control Pins\n Wire Wire Line 1450 3650 1450 3850 Wire Wire Line 1450 4250 1450 4550 Wire Wire Line 800 4250 800 4550 Wire Wire Line 800 3650 800 3850 $Comp L Switch:SW_Push SW1 U 1 1 5F622C91 P 800 4050 F 0 "SW1" V 754 4198 50 0000 L CNN F 1 "SW_Push" V 845 4198 50 0000 L CNN F 2 "Button_Switch_THT:SW_PUSH_6mm" H 800 4250 50 0001 C CNN F 3 "~" H 800 4250 50 0001 C CNN 1 800 4050 0 1 1 0 $EndComp $Comp L Switch:SW_Push SW2 U 1 1 5F624620 P 1450 4050 F 0 "SW2" V 1404 4198 50 0000 L CNN F 1 "SW_Push" V 1495 4198 50 0000 L CNN F 2 "Button_Switch_THT:SW_PUSH_6mm" H 1450 4250 50 0001 C CNN F 3 "~" H 1450 4250 50 0001 C CNN 1 1450 4050 0 1 1 0 $EndComp $Comp L Switch:SW_Push SW4 U 1 1 5F624E55 P 10350 3150 F 0 "SW4" V 10304 3298 50 0000 L CNN F 1 "SW_Push" V 10395 3298 50 0000 L CNN F 2 "Button_Switch_THT:SW_PUSH_6mm" H 10350 3350 50 0001 C CNN F 3 "~" H 10350 3350 50 0001 C CNN 1 10350 3150 0 1 1 0 $EndComp $Comp L Switch:SW_Push SW3 U 1 1 5F62709B P 10300 1700 F 0 "SW3" V 10300 1848 50 0000 L CNN F 1 "SW_Push" V 10345 1848 50 0001 L CNN F 2 "Button_Switch_THT:SW_PUSH_6mm" H 10300 1900 50 0001 C CNN F 3 "~" H 10300 1900 50 0001 C CNN 1 10300 1700 0 1 1 0 $EndComp $Comp L MCU_ST_STM32L0:STM32L031G6UxS U1 U 1 1 5F5777E0 P 2450 1700 F 0 "U1" H 2450 711 50 0000 C CNN F 1 "STM32L031G6UxS" H 2450 620 50 0000 C CNN F 2 "Package_DFN_QFN:QFN-28_4x4mm_P0.5mm" H 2050 900 50 0001 R CNN F 3 "http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00140359.pdf" H 2450 1700 50 0001 C CNN 1 2450 1700 1 0 0 -1 $EndComp Text Label 2950 1300 0 50 ~ 0 USART2_Tx Text Label 2950 1400 0 50 ~ 0 USART2_Rx Wire Wire Line 2950 1300 3700 1300 Wire Wire Line 2950 1400 3700 1400 Text Label 3700 1300 0 50 ~ 0 ESP_Rx Text Label 3700 1400 0 50 ~ 0 ESP_Tx Wire Wire Line 2450 900 2450 800 Wire Wire Line 2450 800 2550 800 Wire Wire Line 2550 800 2550 850 Text Label 2450 800 0 50 ~ 0 VCC2 Text Label 1950 1100 2 50 ~ 0 NRST Text Label 1950 1500 2 50 ~ 0 PC14 Text Label 1950 1600 2 50 ~ 0 PC15 Text Label 2950 1100 0 50 ~ 0 PA0 Text Label 2950 1500 0 50 ~ 0 PA4 Text Label 2950 2200 0 50 ~ 0 SWDIO Text Label 2950 2300 0 50 ~ 0 SWCLK Text Label 2450 2600 0 50 ~ 0 GND Wire Wire Line 2600 850 2550 850 Connection ~ 2550 850 Wire Wire Line 2550 850 2550 900 $EndSCHEMATC

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ESP12-STM32.sch
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