
Parsnip
LimesKey/parsnip-node
A portable LoRa communicator. Custom 4-layer PCB (ESP32-S3 + E22P-915M30S LoRa + NEO-M9N GNSS), designed in KiCad for 915 MHz.
Reflow V7 is an open-source printed circuit board by haicongvo, from the haicongvo/ReflowPCB repository on GitHub. It is a 2-layer board of 77.2 × 61.9 mm with 80 parts on 61 nets, routed with 345 tracks and 40 vias.
It is built around the ESP32-WROOM-32, AMS1117-3.3 and SI2308, with the SS24 and 100UF 10V 4*7 among its other parts. Its parts include 30 resistors, 18 capacitors, 10 diodes, 4 transistors and 3 ICs. It belongs with the ESP32 boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | 100uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C3, C4, C5, C6, C7, C8, C9, C10, C13, C14, C17, C18 |
| 10 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R3, R6, R7, R13, R14, R18, R19, R25, R26 |
| 5 | 220 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5, R21, R22, R23, R30 |
| 5 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1, D2, D4, D9, D10 |
| 4 | 100 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8, R9, R15, R16 |
| 4 | 470 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R4, R10, R17 |
| 4 | 4K7 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R11, R12, R20, R27 |
| 4 | SI2308 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4 |
| 4 | SW_Push | Button_Switch_THT:SW_PUSH_6mm_H9.5mm | DOWN, MENU, OK, UP |
| 3 | Screw_Terminal_01x02 | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | FAN1, SSR1, SSR2 |
| 2 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C11, C15 |
| 2 | 10uF/10V | Capacitor_Tantalum_SMD:CP_EIA-3216-10_Kemet-I_Pad1.58x1.35mm_HandSolder | C12, C16 |
| 2 | 1N4007 | Diode_SMD:D_SMA | D3, D5 |
| 2 | 22R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R24, R28 |
| 2 | SS24 | Diode_SMD:D_SMA | D7, D8 |
| 2 | THERMAL | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | THRM1, THRM2 |
| 1 | 100uF/10V | Capacitor_Tantalum_SMD:CP_EIA-6032-15_Kemet-U_Pad2.25x2.35mm_HandSolder | C2 |
| 1 | 1K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R29 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U3 |
| 1 | Buzzer | Buzzer_Beeper:buzzer_9056 | BZ1 |
| 1 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | IO0 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J6 |
| 1 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | Conn_02x02_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x02_P2.54mm_Vertical | J3 |
| 1 | ESP32-WROOM-32 | RF_Module:ESP32-WROOM-32 | U1 |
| 1 | LED_RABG | LED_SMD:LED_RGB_1210 | D6 |
| 1 | OLED_TFT_128_64 | Display:OLED_128_64 | U2 |
| 1 | SW_Push | Button_Switch_SMD:SW_SPST_SKQG_WithStem | RESET1 |

LimesKey/parsnip-node
A portable LoRa communicator. Custom 4-layer PCB (ESP32-S3 + E22P-915M30S LoRa + NEO-M9N GNSS), designed in KiCad for 915 MHz.







It measures 77.2 × 61.9 mm and has 2 copper layers, 1.6 mm thick.
80 parts, built around the ESP32-WROOM-32, AMS1117-3.3, SI2308 and SS24. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the haicongvo/ReflowPCB repository on GitHub, at the commit this page was made from: the board is reflow_V7.kicad_pcb and its schematic reflow_V7.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask haicongvo before reusing the design.