@ -220,9 +222,9 @@ F 3 "" H 3650 3250 50 0000 C CNN
1 3650 3250
1 0 0 -1
$EndComp
Text Notes 7350 4650 0 60 ~ 0
Text Notes 5900 2050 0 60 ~ 0
WiFi and SDcard connected to\nBANK6 on "usb" sheet
Text Notes 8750 4200 0 60 ~ 0
Text Notes 9250 4650 0 60 ~ 0
Strapping pins\n(avoid using to avoid\nboot problems)\nGPIO0,2,4,5,12,15
Text Notes 2750 5350 0 60 ~ 0
ESP32 ADC capable pins\nGPIO36,39,34,35,32,33,25,26,27,\nGPIO14,12,13,15 - shared with HSPI/JTAG\nConnected to BANK7 on "gpio" sheet
@ -292,7 +294,9 @@ $EndComp
Wire Wire Line
6200 4500 6200 4900
Wire Wire Line
4550 2900 4550 3000
4550 2900 4550 2950
Wire Wire Line
4550 2950 4550 3000
Text GLabel 7550 3800 2 60 Input ~ 0
WIFI_GPIO17
Wire Wire Line
@ -300,28 +304,92 @@ Wire Wire Line
Text Label 5350 2950 0 60 ~ 0
WIFIEN
Connection ~ 4550 2950
Text Notes 1850 4500 0 60 ~ 0
Text Notes 1350 4500 0 60 ~ 0
GPIO12 probably should be held low at reset or disconnected\nother option is to burn flash voltage efuse for 3.3V operation\nfor GPIO2 and GPIO12 bootstrapping considerations, read\nhttps://github.com/espressif/esp-idf/tree/master/examples/storage/sd_card
Text Notes 1850 4850 0 60 ~ 0
Text Notes 1350 4800 0 60 ~ 0
GPIO25,26 are DAC channels that can directly replay\naudio material over i2s bus
Text Notes 1850 4000 0 60 ~ 0
Text Notes 1350 4000 0 60 ~ 0
SD card connected according to\nArduino->Examples->ESP32->SD_MMC_Test\nhttps://github.com/espressif/esp-idf/blob/\nmaster/examples/storage/sd_card/README.md\n
@ -220,9 +220,9 @@ F 3 "" H 3650 3250 50 0000 C CNN
1 3650 3250
1 0 0 -1
$EndComp
Text Notes 7350 4650 0 60 ~ 0
Text Notes 5900 2050 0 60 ~ 0
WiFi and SDcard connected to\nBANK6 on "usb" sheet
Text Notes 8750 4200 0 60 ~ 0
Text Notes 9250 4650 0 60 ~ 0
Strapping pins\n(avoid using to avoid\nboot problems)\nGPIO0,2,4,5,12,15
Text Notes 2750 5350 0 60 ~ 0
ESP32 ADC capable pins\nGPIO36,39,34,35,32,33,25,26,27,\nGPIO14,12,13,15 - shared with HSPI/JTAG\nConnected to BANK7 on "gpio" sheet
@ -300,28 +300,92 @@ Wire Wire Line
Text Label 5350 2950 0 60 ~ 0
WIFIEN
Connection ~ 4550 2950
Text Notes 1850 4500 0 60 ~ 0
Text Notes 1350 4500 0 60 ~ 0
GPIO12 probably should be held low at reset or disconnected\nother option is to burn flash voltage efuse for 3.3V operation\nfor GPIO2 and GPIO12 bootstrapping considerations, read\nhttps://github.com/espressif/esp-idf/tree/master/examples/storage/sd_card
Text Notes 1850 4850 0 60 ~ 0
Text Notes 1350 4800 0 60 ~ 0
GPIO25,26 are DAC channels that can directly replay\naudio material over i2s bus
Text Notes 1850 4000 0 60 ~ 0
Text Notes 1350 4000 0 60 ~ 0
SD card connected according to\nArduino->Examples->ESP32->SD_MMC_Test\nhttps://github.com/espressif/esp-idf/blob/\nmaster/examples/storage/sd_card/README.md\n