Pico keyboard ime terminal

pondahai·pico_keyboard_ime_terminal·hardware/v2_1/v2_1.kicad_pcb

About the Pico keyboard ime terminal PCB

Pico keyboard ime terminal is an open source RP2040/RP2350 PCB design by pondahai, published on GitHub under the MIT license. It is a 2-layer board measuring 100 × 161 mm, with 202 components from 127 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. Other key parts include the 74HC595, 74HC165, MCP73831-2-OT, HT6872 and XB8089D0. By type, the board carries 74 switches, 65 diodes, 24 resistors, 12 capacitors, 10 connectors and 7 ICs.

It belongs with the keyboards designs in this gallery.

Pico keyboard ime terminal, from the project README — From the project README

Main components on the Pico keyboard ime terminal

74HC595 74HC165 Pico MCP73831-2-OT HT6872 XB8089D0

Pico keyboard ime terminal bill of materials (BOM)

202 components, 127 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
2	74HC595	SOIC-16_3.9x9.9mm_P1.27mm	U1, U4
1	74HC165	SOIC-16_3.9x9.9mm_P1.27mm	U2
1	Pico	RaspberryPi_Pico_W_SMD_HandSolder	U3
1	MCP73831-2-OT	SOT-23-5	U5
1	HT6872	SOIC-8_3.9x4.9mm_P1.27mm	U6
1	XB8089D0	SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm	U7
1	HT-RA62_/_RA-01SH_LORA_RADIO HT-RA62_/_RA-01SH_LoRa_radio	HT-RA62 RA-01SH LoRa radio	M1
1	PROMICRO_NRF52840 ProMicro_NRF52840	ProMicro nrf52840	M2
1	ESP32_LORA_V3	LoRa-ESP32-V3	M3
1	T114_V2	T114	M4
1	2N7002	SOT-23_Handsoldering	Q1
1	DMG2305UX	SOT-23_Handsoldering	Q2
1	CONN_01X07 Conn_01x07	PinHeader_1x07_P2.54mm_Horizontal	J1
1	STP0280A1-240320-18P	STP0280A1-240320	J2
1	KEYBOARD	PinSocket_1x07_P2.54mm_Horizontal	J3
1	UART	PinSocket_1x04_P2.54mm_Horizontal	J4
1	I2C Oled screen	PinHeader_1x04_P2.54mm_Vertical	J5
1	AUDIOJACK3_SWITCHTR AudioJack3_SwitchTR	audiojack-3.5mm-5p	J6
1	speaker	SolderWire-0.1sqmm_1x02_P3.6mm_D0.4mm_OD1mm	J7
1	speaker	Hirose_DF13-02P-1.25DSA_1x02_P1.25mm_Vertical	J8

Show 107 more

Qty	Part	Footprint	Refs
1	GPS Pins	PinHeader_1x04_P2.54mm_Vertical	J9
1	Micro_SD_Card	sd-card	J10
1	Li-Poly PH2.0	JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical	BT1
1	10K 10k	potentiometre disk 5pin	RV1
1	1 ! ㄅ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW1
1	Q ㄆ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW2
1	A ㄇ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW3
1	Z ㄈ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW4
1	2 @ ㄉ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW5
1	W ㄊ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW6
1	S ㄋ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW7
1	X ㄌ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW8
1	3 # ˇ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW9
1	E ㄍ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW10
1	D ㄎ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW11
1	C ㄏ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW12
1	4 $ ˋ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW13
1	R ㄐ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW14
1	F ㄑ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW15
1	V ㄒ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW16
1	5 % ㄓ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW17
1	T ㄔ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW18
1	G ㄕ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW19
1	B ㄖ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW20
1	6 ^ ˊ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW21
1	Y ㄗ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW22
1	H ㄘ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW23
1	N ㄙ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW24
1	7 & ˙	SW_Push_1P1T_NO_CK_KSC7xxJ	SW25
1	U ㄧ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW26
1	J ㄨ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW27
1	M ㄩ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW28
1	8 * ㄚ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW29
1	I ㄛ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW30
1	K ㄜ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW31
1	, < ㄝ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW32
1	9 ( ㄞ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW33
1	O ㄟ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW34
1	L ㄠ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW35
1	. > ㄡ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW36
1	0 ) ㄢ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW37
1	P ㄣ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW38
1	; : ㄤ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW39
1	/ ? ㄥ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW40
1	- _ ㄦ	SW_Push_1P1T_NO_CK_KSC7xxJ	SW41
1	[ {	SW_Push_1P1T_NO_CK_KSC7xxJ	SW42
1	' "	SW_Push_1P1T_NO_CK_KSC7xxJ	SW43
1	SHIFT	SW_Push_1P1T_NO_CK_KSC7xxJ	SW44
1	= +	SW_Push_1P1T_NO_CK_KSC7xxJ	SW45
1	] }	SW_Push_1P1T_NO_CK_KSC7xxJ	SW46
1	ENTER	SW_Push_1P1T_NO_CK_KSC7xxJ	SW47
1	SPACE	SW_Push_1P1T_NO_CK_KSC7xxJ	SW48
1	` ~	SW_Push_1P1T_NO_CK_KSC7xxJ	SW49
1	TAB	SW_Push_1P1T_NO_CK_KSC7xxJ	SW50
1	CAPS	SW_Push_1P1T_NO_CK_KSC7xxJ	SW51
1	CTRL	SW_Push_1P1T_NO_CK_KSC7xxJ	SW52
1	ALT	SW_Push_1P1T_NO_CK_KSC7xxJ	SW53
1	BACK	SW_Push_1P1T_NO_CK_KSC7xxJ	SW54
1	\ \|	SW_Push_1P1T_NO_CK_KSC7xxJ	SW55
1	PGUP	SW_Push_1P1T_NO_CK_KSC7xxJ	SW56
1	PGDN	SW_Push_1P1T_NO_CK_KSC7xxJ	SW57
1	⇧	SW_Push_1P1T_NO_CK_KSC7xxJ	SW58
1	⇩	SW_Push_1P1T_NO_CK_KSC7xxJ	SW59
1	⇦	SW_Push_1P1T_NO_CK_KSC7xxJ	SW60
1	⇨	SW_Push_1P1T_NO_CK_KSC7xxJ	SW61
1	ESC	SW_Push_1P1T_NO_CK_KSC7xxJ	SW62
1	bb up	SW_Push_1P1T_NO_CK_KSC7xxJ	SW63
1	POWER	SW_CuK_JS202011AQN_DPDT_Angled	SW64
1	bb down	SW_Push_1P1T_NO_CK_KSC7xxJ	SW65
1	bb left	SW_Push_1P1T_NO_CK_KSC7xxJ	SW66
1	bb right	SW_Push_1P1T_NO_CK_KSC7xxJ	SW67
1	bb a	SW_Push_1P1T_NO_CK_KSC7xxJ	SW68
1	bb b	SW_Push_1P1T_NO_CK_KSC7xxJ	SW69
1	bb c	SW_Push_1P1T_NO_CK_KSC7xxJ	SW70
1	bb d	SW_Push_1P1T_NO_CK_KSC7xxJ	SW71
1	RUN	skrp	SW72
1	RST	skrp	SW75
1	BTN	skrp	SW76
1	VBAT	TestPoint_THTPad_5.0x5.0mm_Drill2.0mm	TP6
1	GND	TestPoint_THTPad_5.0x5.0mm_Drill2.0mm	TP7
62	1N4148	D_0805_JUMPER	D1, D2, D3, D4, D5, D6, D7, D8 +54
1	ㄅ	LED_D3.0mm_Clear	D63
1	ENG	LED_D3.0mm_Clear	D64
1	charge	LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder	D65
3	100N 100n	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C1, C2, C3
1	33N 33n	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C4
2	100N/10U 100n/10u	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C5, C6
1	1u	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C7
1	1U/NC 1u/NC	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C8
3	100NF 100nF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C9, C10, C11
1	100NF 100nF	C_1206_3216Metric_Pad1.33x1.80mm_HandSolder	C12
2	R_US	R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal_0805	R1, R2
1	330	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R3
4	10K 10k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R4, R7, R15, R18
1	5K1 5k1	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R5
1	1k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R6
1	270	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R8
1	NC/150	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R9
1	0/15K 0/15k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R10
1	0/NC	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R11
2	12K/100 12k/100	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R12, R13
1	NC/10K NC/10k	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R14
2	10M	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R16, R17
1	1k	R_1206_3216Metric_Pad1.30x1.75mm_HandSolder	R19
2	10K	R_Array_Convex_4x0603	RN1, RN2
1	10	R_Array_Convex_4x0603	RN3
2	47K 47k	R_Array_Convex_4x0603	RN4, RN5

Pico keyboard ime terminal design files

The KiCad project lives in the pondahai/pico_keyboard_ime_terminal repository on GitHub; these links point at the commit this page was built from.

Pico keyboard ime terminal: common questions

What microcontroller does the Pico keyboard ime terminal use?

The Pico keyboard ime terminal is built around the Pico, from the RP2040/RP2350 family.

How big is the Pico keyboard ime terminal PCB?

The Pico keyboard ime terminal measures 100 × 161 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Pico keyboard ime terminal?

202 components, from 127 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Pico keyboard ime terminal design files?

From the pondahai/pico_keyboard_ime_terminal repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Pico keyboard ime terminal design in my own project?

Yes, under the terms of its MIT license, which pondahai chose for the repository.

Can I test firmware for the Pico keyboard ime terminal without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.