2j87/Trochi1microdrone motherboard
Trochi is an open-source printed circuit board by 2j87, from the 2j87/Trochi repository on GitHub. It is a 2-layer board of 19 × 26.2 mm with 59 parts on 34 nets, routed with 299 tracks and 17 vias.
It is built around the TF-021B-H265, ICM-42688-P and ME6211C33M5G-N, with the YX-SMD5020, 1N5819W and AO3400A among its other parts. Its parts include 17 resistors, 14 capacitors, 7 connectors, 6 diodes and 5 transistors. It belongs with the computers and single-board computers boards of this library.
Trochi is a coreless-motor drone mainboard designed as a shield for the ESP32-S3 Supermini, controlled over WiFi/ESP-NOW using the ESP-Drone firmware stack (no dedicated RC receiver).
| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 10KΩ | Resistor_SMD:R_0402_1005Metric | R4, R9, R10, R12, R13, R14, R15, R17 |
| 6 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C7, C8, C9, C10, C13 |
| 6 | LOGO | LOGO | G***, G***, G***, G***, G***, G*** |
| 5 | 100Ω | Resistor_SMD:R_0402_1005Metric | R2, R3, R7, R8, R16 |
| 5 | 1N5819W | Diode_SMD:D_SOD-123 | D1, D2, D3, D4, D6 |
| 5 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5 |
| 4 | JST-SH | trochi_footprint:CONN-SMD_2P-P1.00_SM02B-SRSS-TB-LF-SN | J1, J2, J6, J7 |
| 3 | 22µF | Capacitor_SMD:C_0603_1608Metric | C2, C3, C4 |
| 2 | 100KΩ | Resistor_SMD:R_0402_1005Metric | R1, R6 |
| 2 | 10µF | Capacitor_SMD:C_0402_1005Metric | C5, C12 |
| 2 | Conn_01x09 | Connector_PinHeader_2.54mm:PinHeader_1x09_P2.54mm_Vertical | J4, J5 |
| 1 | 10nF | Capacitor_SMD:C_0402_1005Metric | C14 |
| 1 | 10Ω | Resistor_SMD:R_0402_1005Metric | R5 |
| 1 | 1KΩ | Resistor_SMD:R_0402_1005Metric | R11 |
| 1 | 2.2uF | Capacitor_SMD:C_0402_1005Metric | C11 |
| 1 | 22µF | Capacitor_SMD:C_0805_2012Metric | C6 |
| 1 | ICM-42688-P | trochi_footprint:ICM-42688-P | IC1 |
| 1 | JST PH | trochi_footprint:CONN-SMD_P2.00_S2B-PH-SM4-TB-LF-SN | J3 |
| 1 | LED_RED | LED_SMD:LED_0603_1608Metric | D5 |
| 1 | ME6211C33M5 | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | TF-021B-H265 | trochi_footprint:TF-SMD_TF-021B-H265 | Card1 |
| 1 | YX-SMD5020 | trochi_footprint:BUZ-SMD_3P_L5.0-W5.0-P3.50-TL | U3 |
It measures 19 × 26.2 mm and has 2 copper layers, 1.6 mm thick.
59 parts, built around the TF-021B-H265, ICM-42688-P, ME6211C33M5G-N and YX-SMD5020. 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 2j87/Trochi repository on GitHub, at the commit this page was made from: the board is Hardware/Trochi.kicad_pcb and its schematic Hardware/Trochi.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 2j87 before reusing the design.
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