* remaps all symbols and footprints to those present in KiCad 5.1.2.
* add mounting holes to schematics
* PCB has been touched up due to footprint changes, but should remain
almost identical to the original
* NOTE: schematic now has some warnings about tristate<->output connections
symbols and footprints are mapped as follows:
Designator Old symbol Old package New symbol New package
C1,C2,C3,C4,C5,C8 C_Small Capacitors_THT:C_Disc_D3_P2.5 Device:C_Small Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm
C6 C_Small Capacitors_THT:C_Disc_D3_P5 Device:C_Small Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm
C7 C_Small Capacitors_THT:C_Disc_D3_P2.5 Device:C_Small Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm
CON1 BARREL_JACK Connectors:BARREL_JACK Connector:Barrel_Jack_Switch Connector_BarrelJack:BarrelJack_Horizontal
D1,D2,D3,D4,D5,D6,D7,D8 LED LEDs:LED-3MM Device:LED LED_THT:LED_D3.0mm
P1 CONN_02X05 Connectors:IDC_Header_Straight_10pins Conn_02x05_Odd_Even Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical
U2 MAX232 Housings_DIP:DIP-16_W7.62mm Interface_UART:MAX232 Package_DIP:DIP-16_W7.62mm
U3 74LS32 Housings_DIP:DIP-14_W7.62mm 74xx:74LS32 Package_DIP:DIP-14_W7.62mm
U4 LM2931AZ-3.3/5.0 TO_SOT_Packages_THT:TO-92_Inline_Wide Regulator_Linear:LP2950-3.3_TO92 Package_TO_SOT_THT:TO-92L_Inline_Wide
U5 WeMos_mini WEMOS_D1_Mini:wemos-d1-mini-with-pin-header-and-connector RetroWiFiModem:WeMos_mini footprint:wemos-d1-mini
U1 74ACT245 Housings_DIP:DIP-20_W7.62mm 74xx:74HC245 Package_DIP:DIP-20_W7.62mm
R1,R2,R3,R4,R5,R6,R7,R8 R_US Discret:R3 Device:R Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal
R9 R_US Discret:R3 Device:R Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal
H1,H2,H3,H4,H5,H6 Mounting_Holes:MountingHole_3.2mm_Hammond_1593 Mechanical:MountingHole MountingHole:MountingHole_3.2mm_M3
