def generate_wemos_d1_mini():
"""Generate Wemos D1 footprint"""
subcircuit_label('wemos_d1_mini')
global U1
U1 = Part('MCU_Module',
'WeMOs_D1_mini',
footprint='Module:WEMOS_D1_mini_light')
U1['5V'] += Net.fetch('+VBatt')
U1['GND'] += Net.fetch('GND')
def connect_parts(a, b):
"""Connect pins with same name of two parts"""
flatten = itertools.chain.from_iterable
a_pins = list(flatten([pin.name.split("/") for pin in a.get_pins()]))
b_pins = list(flatten([pin.name.split("/") for pin in b.get_pins()]))
common_pins = [value for value in a_pins if value in b_pins]
for pin_name in common_pins:
a[pin_name] += Net.fetch(pin_name)
b[pin_name] += Net.fetch(pin_name)
def generate_esp():
"""Generate ESP-module code to circuit"""
subcircuit_label('esp')
global U1
U1 = Part('RF_Module', 'ESP-12E', footprint='RF_Module:ESP-12E')
U1['VCC'] += Net.fetch('+3V3')
U1['GND'] += Net.fetch('GND')
U1['EN'] & R('10k') & Net.fetch('+3V3')
U1['GPIO15'] & R('4k7') & Net.fetch('GND')
@subcircuit
def generate_power_led():
"""Generate led connected to ESP GPI0 that is on after boot"""
subcircuit_label('power_led')
led = Part('Device', 'LED', footprint='LED_SMD:LED_1206_3216Metric')
U1['GPIO0'] & (R('1k') & led & Net.fetch('+3V3'))
generate_power_led()
# Generate button for pulling ESP RST pin to low (e.g. reset)
sw_reset = Part('Switch',
'SW_Push',
footprint="Button_Switch_SMD:SW_SPST_B3U-1000P")
sw_reset[1] += Net.fetch('RST')
sw_reset[2] += Net.fetch('GND')
# Generate ESP serial networks
U1['TX'] += Net.fetch('tx')
U1['RX'] += Net.fetch('rx')
def generate_esp():
"""Generate ESP-module code to circuit"""
global U1
U1 = Part('RF_Module', 'ESP-12E', footprint='RF_Module:ESP-12E')
U1['VCC'] += Net.fetch('+VBatt')
U1['GND'] += Net.fetch('GND')
U1['EN'] & R('10k') & Net.fetch('+VBatt')
U1['GPIO15'] & R('4k7') & Net.fetch('GND')
@subcircuit
def generate_power_led():
"""Generate led connected to ESP GPI0 that is on after boot"""
led = Part('Device', 'LED', footprint='LED_SMD:LED_1206_3216Metric')
U1['GPIO0'] & (R('1k') & led & Net.fetch('+VBatt'))
generate_power_led()
def generate_esp_uart_reset():
"""Generate reset circuitry for ESP"""
subcircuit_label('esp_uart_reset')
Q1 = Part('Device',
'Q_NPN_BEC',
value='mmbt2222',
footprint='Package_TO_SOT_SMD:SOT-23')
Q2 = Part('Device',
'Q_NPN_BEC',
value='mmbt2222',
footprint='Package_TO_SOT_SMD:SOT-23')
Net.fetch('DTR') & R('10k') & Q1['B']
Net.fetch('RTS') & R('10k') & Q2['B']
Net.fetch('DTR') & Q2['E']
Net.fetch('RTS') & Q1['E']
Q1['C'] & Net.fetch('RST')
Q2['C'] & Net.fetch('GPIO0')
def generate_mcp73831():
"""Generate MCP73831 battery management IC"""
subcircuit_label('mcp73831')
BATTERYMANAGER = Part('Battery_Management',
'MCP73831-2-OT',
footprint='Package_TO_SOT_SMD:SOT-23-5')
BM_LED = Part('Device', 'LED', footprint='LED_SMD:LED_1206_3216Metric')
BATTERYMANAGER['STAT'] & R('1k') & BM_LED & Net.fetch('+VBus')
BATTERYMANAGER['VSS'] += Net.fetch('GND')
Net.fetch('GND') & R('2k') & BATTERYMANAGER['PROG']
Net.fetch('+VLipo') & C('10uF') & Net.fetch('GND')
def generate_esp():
"""Generate ESP-module code to circuit"""
global U1
U1 = Part('RF_Module', 'ESP-12E', footprint='RF_Module:ESP-12E')
U1['VCC'] += Net.fetch('+VBatt')
U1['GND'] += Net.fetch('GND')
U1['EN'] & R('10k') & Net.fetch('+VBatt')
U1['GPIO15'] & R('4k7') & Net.fetch('GND')
U1['RST'] += Net.fetch('RST')
U1['GPIO16'] += Net.fetch('RST')
@subcircuit
def generate_power_led():
"""Generate led connected to ESP GPI0 that is on after boot"""
led = Part('Device', 'LED', footprint='LED_SMD:LED_1206_3216Metric')
U1['GPIO0'] & (R('1k') & led & Net.fetch('+VBatt'))
generate_power_led()
# Generate button for pulling ESP RST pin to low (e.g. reset)
sw_reset = Part('Switch',
'SW_Push',
footprint="Button_Switch_SMD:SW_SPST_B3U-1000P")
sw_reset[1] += Net.fetch('RST')
sw_reset[2] += Net.fetch('GND')
# Generate button for pulling pulling ESP GPIO0 low (e.g. flash mode when booting)
sw_flash = Part('Switch',
'SW_Push',
footprint="Button_Switch_SMD:SW_SPST_B3U-1000P")
sw_flash[1] += U1['GPIO0']
sw_flash[2] += Net.fetch('GND')
def generate_power_led():
"""Generate led connected to ESP GPI0 that is on after boot"""
led = Part('Device', 'LED', footprint='LED_SMD:LED_1206_3216Metric')
U1['GPIO0'] & (R('1k') & led & Net.fetch('+VBatt'))
def C(value):
"""Creates default capacitor footprint"""
return Part('Device',
'C',
value=value,
footprint='Capacitor_SMD:C_1206_3216Metric')
U1 = Part('MCU_Microchip_ATmega',
'ATmega328P-AU',
footprint='Package_QFP:TQFP-32_7x7mm_P0.8mm')
# Power networks
U1['VCC'] += Net.fetch('+5V')
U1['AVCC'] += Net.fetch('+5V')
U1['GND'] += Net.fetch('GND')
U1['~RESET~/PC6'] & R('10k') & Net.fetch('+5V')
# Crystal
ATMEGA_XTAL = Part('Device',
'Resonator',
footprint='Resonator_SMD_muRata_CSTxExxV-3Pin_3.0x1.1mm')
U1['XTAL1/PB6'] += ATMEGA_XTAL[1]
U1['XTAL2/PB7'] += ATMEGA_XTAL[3]
ATMEGA_XTAL[2] += Net.fetch('GND')
ATMEGA_XTAL_R = Part('Device',
'R',
value='1M',
sw_reset[1] += Net.fetch('RST')
sw_reset[2] += Net.fetch('GND')
# Generate button for pulling pulling ESP GPIO0 low (e.g. flash mode when booting)
sw_flash = Part('Switch',
'SW_Push',
footprint="Button_Switch_SMD:SW_SPST_B3U-1000P")
sw_flash[1] += U1['GPIO0']
sw_flash[2] += Net.fetch('GND')
# Generate ESP serial networks
U1['TX'] += Net.fetch('tx')
U1['RX'] += Net.fetch('rx')
generate_esp()
FTDI_HEADER = Part('Connector',
'Conn_01x06_Female',
footprint='Skimibowi:FTDI_Header')
FTDI_HEADER[1] += Net.fetch('GND')
FTDI_HEADER[2] += Net.fetch('CTS')
FTDI_HEADER[3] += Net.fetch('+VBatt')
FTDI_HEADER[4] += Net.fetch('rx')
FTDI_HEADER[5] += Net.fetch('tx')
FTDI_HEADER[6] += Net.fetch('RTS')
generate_netlist()
def generate_cp2104():
"""Generate CP2104 usb uart circuitry"""
subcircuit_label('cp2104')
cp2104 = Part(
'Interface_USB',
'CP2104',
footprint="Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm")
cp2104['VIO'] += Net.fetch('+3V3')
cp2104['VDD'] += Net.fetch('+3V3')
cp2104['REGIN'] += Net.fetch('+3V3')
Net.fetch('GND') & C('10uF') & (cp2104['VIO'] | cp2104['VDD']
| cp2104['REGIN'])
cp2104['GND'] += Net.fetch('GND')
cp2104['VBUS'] += Net.fetch('+VBus')
cp2104['D+'] += Net.fetch('USBD+')
cp2104['D-'] += Net.fetch('USBD-')
cp2104['TXD'] & R('470') & Net.fetch('rx')
cp2104['RXD'] & R('470') & Net.fetch('tx')
cp2104['DTR'] += Net.fetch('DTR')
cp2104['RTS'] += Net.fetch('RTS')
# Support ROM programming
cp2104['VPP'] & C('4.7uF') & Net.fetch('GND')
# Optional, improves stability
cp2104['RST'] & R('4k7') & Net.fetch('+3V3')
footprint="Button_Switch_SMD:SW_SPST_B3U-1000P")
sw_reset[1] += Net.fetch('RST')
sw_reset[2] += Net.fetch('GND')
# Generate ESP serial networks
U1['TX'] += Net.fetch('tx')
U1['RX'] += Net.fetch('rx')
generate_esp()
BATTERY = Part('Connector',
'Conn_01x02_Female',
footprint='JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal')
BATTERY[1] += Net.fetch('+VBatt')
BATTERY[2] += Net.fetch('GND')
@subcircuit
def generate_mcp73831():
"""Generate MCP73831 battery management IC"""
subcircuit_label('mcp73831')
BATTERYMANAGER = Part('Battery_Management',
'MCP73831-2-OT',
footprint='Package_TO_SOT_SMD:SOT-23-5')
BM_LED = Part('Device', 'LED', footprint='LED_SMD:LED_1206_3216Metric')
BATTERYMANAGER['STAT'] & R('1k') & BM_LED & Net.fetch('+VBus')
BATTERYMANAGER['VSS'] += Net.fetch('GND')
"""Generate Wemos D1 footprint"""
subcircuit_label('wemos_d1_mini')
global U1
U1 = Part('MCU_Module',
'WeMOs_D1_mini',
footprint='Module:WEMOS_D1_mini_light')
U1['5V'] += Net.fetch('+VBatt')
U1['GND'] += Net.fetch('GND')
generate_wemos_d1_mini()
BATTERY = Part('Device',
'Battery',
footprint='Battery:BatteryHolder_Keystone_2462_2xAA')
BATTERY['+'] += Net.fetch('+VBatt')
BATTERY['-'] += Net.fetch('GND')
U1['D4'] += Net.fetch('DQ')
Net.fetch('+VBatt') & R('4k7') & Net.fetch('DQ')
U3 = Part('Sensor_Temperature',
'DS18B20U',
footprint="Package_SO:MSOP-8_3x3mm_P0.65mm")
U3['VDD'] += Net.fetch('+VBatt')
U3['GND'] += Net.fetch('GND')
U3['DQ'] += Net.fetch('DQ')
Net.fetch('+VBatt') & BATTERY
generate_netlist()