MDBTMicro-50Q is an alternative board to nRFMicro/Pro Micro.
It has USB Type-C and LiPo charger, uses Raytac MDBT50Q-x1MV2 nRF52840 module (or MDBT50Q-x512K nRF52833 module) instead of E73-2G4M08S1.
Go to Releases for schematic and Gerber files.
A part of ErgoSNM keyboard project.
EDA: KiCad
Front | Back | Layers |
---|---|---|
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Designator | Value | Footprint |
---|---|---|
C1,C2 | 1uF | 0603 (1608 Metric) |
C3,C4 | 12pF | 0603 (1608 Metric) |
R1 | 100k | 0603 (1608 Metric) |
R2,R4 | 1k | 0603 (1608 Metric) |
R3 | Rprog | 0603 (1608 Metric) |
R5 | 1k | 0402 (1005 Metric) |
R6 | 820k | 0603 (1608 Metric) |
R7,R8 | 2M | 0603 (1608 Metric) |
R9,R10 | 5.1k | 0603 (1608 Metric) |
D1 | 1N5819 | SOD-323F |
J2 | USB_C_Receptacle_USB2.0 | 918-418K2024S40000 |
LD1 | Red | 0603 (1608 Metric) |
LD2 | Blue | 0603 (1608 Metric) |
LD3 | Green | 0402 (1005 Metric) |
Q1,Q2 | AO3407 | Package_TO_SOT_SMD:SOT-23 |
U1 | XC6220B331MR-G | SOT-23-5 |
U2 | MDBT50Q-x1MV2 | MDBT50Q |
U3 | TP4057 | SOT-23-6 |
X1 | 32.768kHz | 2Pin 3.2x1.5mm |
There is not designator silkscreen on PCB, please use your browser to open the ibom.html
file (placed in release page) to refer to the placement of the parts, it is generated by Interactive HTML BOM plugin.
MDBTMicro-50Q 1.4 |
nRFMicro 1.4 |
Pro Micro | <--> | Pro Micro | nRFMicro 1.4 |
MDBTMicro-50Q 1.4 |
---|---|---|---|---|---|---|
GND | GND | -- | -- | VBAT | VBAT | |
P0.06 | P0.06 | D1/Tx | RAW | VBAT | VBUS (USB 5V) | |
P0.08 | P0.08 | D0/Rx | GND | GND | GND | |
GND | GND | GND | RST | P0.18/RESET | P0.18/RESET | |
GND | GND | GND | VCC | VDD & VDDH | VDD & VDDH | |
P0.15 | P0.15 | D2 | A3 | P0.30 | P0.30 | |
P0.17 | P0.17 | D3 | A2 | P0.31 | P0.31 | |
P0.20 | P0.20 | D4 | A1 | P0.29 | P0.29 | |
P0.13 | P0.13 | D5 | A0 | P0.02 | P0.02 | |
P0.24 | P0.24 | D6 | D15 | P1.13 | P1.13 (P1.05) | |
P0.09 | P0.09 | D7 | D14 | P0.03 | P0.03 | |
P0.10 | P0.10 | D8 | D16 | P0.28 | P0.28 | |
P1.06 | P1.06 | D9 | D10 | P1.11 | P1.11 (P1.04) | |
P1.10 (P0.25) | P1.10 | -- | LED Pin | |||
P0.04 | P0.04 | -- | Battery Pin | |||
P1.09 | P1.09 | -- | Power Pin | |||
P1.12 (P0.23) | -- | -- | TP1 | |||
P1.14 (P1.03) | -- | -- | TP2 | |||
P1.15 (P0.19) | -- | -- | TP3 | |||
P0.05 | -- | -- | TP4 | |||
P0.07 | -- | -- | TP5 | |||
P0.11 | -- | -- | TP6 | |||
P0.12 | -- | -- | TP7 |
Italics in brackets for MDBT50Q-x512K (nRF52833) pins, otherwise MDBT50Q-x1MV2 (nRF52840).
Almost the same as nRFMicro 1.4
These files without warranty of any kind, use at your own risk, it is recommended to check yourself before manufacture.
For the full statement, please see LICENSE.