Shen is a low-cost pico-sized RP2350A development board along with the raspberry pi RM2, in a small 21mmx51mm form factor, with USB-C support. It is a 4 layer stackup with 1.0mm thickness.
Check out the PCB online on KiCanvas
- WiFi and Bluetooth support
- dual-core
- 4MiB Flash storage(expandable upto 16MiB)
- User-LED
- High efficiency sychronous buck converter
- USB Boot
- Curvy Traces
Some parts(such as those in quantities of 50 and 100) are chosen because of the MOQ.
| Designator |
Function |
Value |
Footprint |
Quantity |
Price |
Amount |
Link |
| PCB |
PCB |
|
21x51 |
5+1 |
2.1+3.07 |
5.17 |
https://jlcpcb.com/ |
| C1, C2, C4 |
Capacitor |
4.7u |
603 |
50 |
0.0048 |
0.24 |
https://robu.in/product/tcc0603x5r475m160ct-cctc-smt-ceramic-capacitors-0603-x5r-475m4-7%c2%b5f%c2%b120-rated-voltage16v-thickness0-80mm-tape/ |
| C10, C11, C12, C13, C14, C18, C20, C5, C6, C7, C8, C9 |
Capacitor |
100n |
201 |
100 |
0.0011 |
0.11 |
https://robu.in/product/cl03a104ko3nnnc-samsang-16v-100nf-x5r-%c2%b110-0201-multilayer-ceramic-capacitors-mlcc-smd-smt-rohs/ |
| C15, C16 |
Capacitor |
22p |
201 |
50 |
0.004 |
0.2 |
https://robu.in/product/grm0335c1h220ja01d-murata-cap-ceramic-22pf-50v-c0g-5-pad-smd-0201-125c-automotive-t-r/ |
| C17, C19 |
Capacitor |
10u |
603 |
4 |
0.03 |
0.12 |
https://www.lcsc.com/product-detail/C7393892.html |
| D1 |
LED |
LED |
402 |
4 |
0.01 |
0.04 |
https://www.lcsc.com/product-detail/C7496805.html |
| J4 |
USB-C |
USB_C_Receptacle_USB2.0_16P |
USB_C_Receptacle_XKB_U262-16XN-4BVC11 |
2 |
0.06 |
0.12 |
https://www.lcsc.com/product-detail/C393939.html |
| L1 |
Inductor |
3.3u |
IND-SMD_L2.0-W1.6_AOTA-B201610S3R3-101-T |
2 |
0.28 |
0.56 |
https://www.lcsc.com/product-detail/C42411119.html |
| L2 |
Inductor |
1u |
805 |
5 |
0.13 |
0.65 |
https://robu.in/product/mlp2012h1r0mt0s1-tdk-1-1a-1uh-%c2%b120-120m%cf%89-0805-inductors-smd-rohs/ |
| R1, R2 |
Resistor |
27 |
201 |
50 |
0.0038 |
0.19 |
https://robu.in/product/rc0201fr-0727rl-yageo-smd-chip-resistor-27-ohm-%C2%B1-1-50-mw-0201-0603-metric-thick-film-general-purpose/ |
| R9 |
Resistor |
63.4k |
201 |
100 |
0.0011 |
0.11 |
https://robu.in/product/rc0201fr-0763k4l-yageo-50mw-thick-film-resistors-25v-%c2%b11-%c2%b1200ppm-%e2%84%83-63-4k%cf%89-0201-chip-resistor-surface-mount-rohs/ |
| R11 |
Resistor |
470 |
201 |
50 |
0.0038 |
0.19 |
https://robu.in/product/0201wmj0471tee-uniohm-royal-ohm-50mw-thick-film-resistors-25v-%c2%b15-%c2%b1200ppm-%e2%84%83-470%cf%89-0201-chip-resistor-surface-mount-rohs/ |
| R10, R12 |
Resistor |
10k |
201 |
50 |
0.0038 |
0.19 |
https://robu.in/product/0201wmf1002tee-uniohm-royal-ohm-50mw-thick-film-resistors-25v-%c2%b11-%c2%b1200ppm-%e2%84%83-10k%cf%89-0201-chip-resistor-surface-mount-rohs/ |
| R13, R14 |
Resistor |
5.1k |
201 |
50 |
0.0038 |
0.19 |
https://robu.in/product/0201wmf5101tee-uniohm-royal-ohm-50mw-thick-film-resistors-25v%c2%b11%c2%b1200ppm-%e2%84%83-5-1k%cf%89-0201-chip-resistor-surface-mount-rohs/ |
| R3, R5, R6, R7, R8 |
Resistor |
1K |
201 |
50 |
0.0038 |
0.19 |
https://robu.in/product/0201wmf1001tee-uniohm-royal-ohm-50mw-thick-film-resistors-25v%c2%b11%c2%b1200ppm-%e2%84%83-1k%cf%89-0201-chip-resistor-surface-mount-rohs/ |
| R4 |
Resistor |
33 |
201 |
50 |
0.0038 |
0.19 |
https://robu.in/product/0201wmf330jtee-uniohm-royal-ohm-50mw-thick-film-resistors-25v%c2%b11%c2%b1200ppm-%e2%84%83-33%cf%89-0201-chip-resistor-surface-mount-rohs/ |
| SW1, SW2 |
Switch |
SW_Push |
SW_SPST_PTS810 |
5 |
0.27 |
1.35 |
https://robu.in/product/pts810sjm250smtrlfs-ck-3-2mm-2-5mm-round-button-50ma-standing-paste-4-2mm-spst-160gf-16v-smd-tactile-switches-rohs/ |
| U1 |
MCU |
RP2350A |
QFN-60-1EP_7x7mm_P0.4mm_EP3.4x3.4mm |
3 |
1.14 |
3.42 |
https://robu.in/product/raspberry-pi-rp2350a-microcontroller-ic/ |
| U2 |
Flash Storage |
W25Q32JVZP |
WSON-8-1EP_6x5mm_P1.27mm_EP3.4x4.3mm |
2 |
0.96 |
1.92 |
https://robu.in/product/w25q32jwzpiq-tr-winbond-elec-32mbit-spi-133mhz-wson-8-ep5x6-nor-flash-rohs/ |
| U3 |
RF module |
RPI-RM2 |
RPI_RM2 |
2 |
6.99 |
13.98 |
https://robu.in/product/raspberry-pi-radio-module-rmc20452t/ |
| U4 |
Buck |
TLV62084DSGx |
WSON-8-1EP_2x2mm_P0.5mm_EP0.9x1.6mm |
3 |
0.31 |
0.93 |
https://robu.in/product/1-month-warranty-565/ |
| Y1 |
Crystal |
12MHz |
Crystal_SMD_3225-4Pin_3.2x2.5mm |
5 |
0.19 |
0.95 |
https://robu.in/product/ysx321sl-12mhz-10pf-10ppm-4pins-smd-smt-metal-surface-quartz-crystal-pack-of-2/ |
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Subtotal |
31.01 |
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PCB Shipping |
12 |
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Total Cost |
43.01 |
|
Shen is taken from the chinese letter '参' which primarily means "to participate," "to join," "to take part in,"
