2153a220a0
schematic symbol for ADC MAX11123
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small PCB traces cleanup
ADC chip placed on PCB but connected only to GND
8 years ago
be09416928
Add 27 ohm resistors in series with FTDI USB and readme update
8 years ago
278ac6b341
2.2uF for ESP-32 and gerber update
8 years ago
ee7d266543
Resistors for LEDs
8 years ago
18aef04f2c
JTAG header
8 years ago
b7500cc477
increasing thickness of power traces, moving clock
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to a bank which is always at 3.3V
8 years ago
2a60828a99
schem. pullup 1.5k for USB 1.1 full speed mode
8 years ago
23b588ff16
Routing... 4 routes remaining
8 years ago
0f9d00f602
Buffer capacitor for SDRAM
8 years ago
9d6f8bf493
improving SD card power supply and replacing with
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suitable schematic symbol for micro SD card (was normal SD card)
8 years ago
1e5e0b01a6
connecting JTAG lines to FTDI serial lines RI DCD CTS DSR
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as those pins are by default inputs and can be reconfigured as outputs
similar but not identical pinout as the one that works from ujprog
CBUS used to force-wakeup of the board from sleep state
2 LEDs to CBUS pins to display usb enumeration and activity status
8 years ago
19b884baef
using corrected schem symbol, reordering pins
8 years ago
d6fd30e59c
jumper to disable wifi module
8 years ago
c297a5294f
adding 25 MHz oscillator and moving some parts around
8 years ago
12e89e677a
connecting wifi, usbserial, oled, sd card
8 years ago
a477fbd050
connecting flash config chip
8 years ago
85cb0b3f93
Placing 40-pin connectors side-by-side,
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changing ft2232 to ft231x
8 years ago
a7de1a4e58
power button
8 years ago
4f3fabdb5f
oled updated on the schematic and PCB
8 years ago
6639abded3
add 4 mounting holes
8 years ago
b661cacede
Change to 2x20 pin headers, PCB layout currently sub-optimal
8 years ago
f7185a0ff7
improving wifi SD and JTAG pinouts.
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Unsure of JTAG (GPIO20 is NC on ESP-32S module?)
8 years ago
f9ba6fa20b
chage ESP8266-12E to ESP32S
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approximate (maybe incorrect) connections - need review
(programming esp from fpga, jtag, sd, chip enable)
8 years ago
a0dae5bb6a
another diode to duscharge C14 at shutdown
8 years ago
cf01d5cc8d
Power: Replace discharge resistor which leaks with
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a diode for discharge C at shutdown
HDMI pin 0 is now the shield and connected to GND
8 years ago
dc6ea57d67
Label button pullup net "BTNPU"
8 years ago
23c4cde741
GPDI I2C 5V level shifter
8 years ago
7fd0f561fc
Add SPI flash chip
8 years ago
aa8fac622b
SD card to sperate "sdcard" sheet
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small rearranging and comments
8 years ago
davor