

Melty controller-2
Some bits for robots or other control applications
- Size
- 43.5 × 15 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 40
- Nets
- 72
- Pads
- 160
- Tracks, vias
- 235, 31
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 5 (file 20201002)
- Created
- 18 Mar 2022
- Updated
- 25 Feb 2022
Overview
Melty controller-2 is an open-source printed circuit board by goktugh, from the goktugh/robotbits repository on GitHub. It is a 2-layer board of 43.5 × 15 mm with 40 parts on 72 nets, routed with 235 tracks and 31 vias.
It is built around the ESP32-PICO-D4, MT2492 and HT7250, with the MMA1200KEG, AN9520-245 and 2N7002ET1G-ES among its other parts. Its parts include 11 resistors, 9 capacitors, 6 diodes, 4 ICs and 3 connectors. It belongs with the ESP32 and RISC-V boards of this library.
Main components
6ESP32-PICO-D4
QFN-48-EP(7x7)-40℃~+85℃ -97dBm 150Mbps 2.412GHz~2.484GHz 2.4GHz 2.7V~3.6V 20dBm Bluetooth、WiFi SPI、I2C transceiver QFN-48-EP(7x7) RF Transceiver ICs ROHSEspressif SystemsRF Transceiver ICsMT2492
SOT-23-6-40℃~+85℃@(TA) 1 2A 4.5V~16V 600kHz Adjustable Buck Buck Built-in Yes SOT-23-6 DC-DC Converters ROHS西安航天民芯DC-DC ConvertersHT7250
SOT-89-3-40℃~+85℃@(Ta) 1 300mA 300mV@(300mA) 4uA 5V 8V Fixed Over Current Protection、Over Temperature Protection Positive SOT-89-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSHoltek SemiconVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsMMA1200KEG
SOT-1761-1SOT-1761-1 Accelerometers ROHSNXP SemiconductorsAccelerometersAN9520-245
SMD,9.5x2.1mm-40℃~+85℃ 1.5dBi 1mm 2 2.1mm 2.45GHz 200MHz 3W 50Ω 9.5mm Patch Antenna SMD,9.5x2.1mm Antennas ROHSrainsun台湾霖昱微Antennas2N7002ET1G-ES
SOT-23-55℃~+150℃ 1 N-channel 1.6V 1.85Ω@10V 1.8nC@4.5V 11pF 28pF 300mA 350mW 4pF 60V N-Channel SOT-23 MOSFETs ROHSElecSuperMOSFETs
Parts
40| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 22k | Resistor_SMD:R_0603_1608Metric | R1, R9, R10, R12 |
| 4 | TestPoint | TestPoint:TestPoint_Pad_1.5x1.5mm | TP1, TP2, TP3, TP4 |
| 4 | white side smd | melty-controller:LED_SIDEVIEW | D2, D3, D4, D5 |
| 3 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C1, C6, C8 |
| 3 | 10uF | Capacitor_SMD:C_0603_1608Metric | C2, C5, C9 |
| 2 | 100R | Resistor_SMD:R_0603_1608Metric | R4, R5 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric | R6, R8 |
| 2 | 220R | Resistor_SMD:R_0603_1608Metric | R3, R7 |
| 2 | LED | LED_SMD:LED_0805_2012Metric_Castellated | D1, D6 |
| 1 | AN9520-245 | melty-controller:AN9520-245 | AE1 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R11 |
| 1 | 10nF | Capacitor_SMD:C_0603_1608Metric | C7 |
| 1 | 10uH | Inductor_SMD:L_1210_3225Metric | L1 |
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric | C4 |
| 1 | 22nF | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 2N7002ET1G | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | Conn_01x02_Male | Connector_Wire:SolderWire-0.5sqmm_1x02_P4.6mm_D0.9mm_OD2.1mm | J1 |
| 1 | ESP32-PICO-D4 | melty-controller:esp32-pico-special | U1 |
| 1 | HT7250 | Package_TO_SOT_SMD:SOT-23 | U4 |
| 1 | MMA1200KEG | Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm | U3 |
| 1 | MT2492 | Package_TO_SOT_SMD:SOT-23-6 | U2 |
| 1 | esc_io | Connector_PinHeader_2.00mm:PinHeader_1x04_P2.00mm_Vertical | J3 |
| 1 | soicbite | melty-controller:SOIC_clipProgSmall | J2 |
Questions
How big is the Melty controller-2 PCB?
It measures 43.5 × 15 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Melty controller-2 use?
40 parts, built around the ESP32-PICO-D4, MT2492, HT7250 and MMA1200KEG. 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.
Where can I download the Melty controller-2 KiCad files?
From the goktugh/robotbits repository on GitHub, at the commit this page was made from: the board is melty-controller-2/melty-controller-2.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Melty controller-2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask goktugh before reusing the design.
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