
CoCoDragonMultiPak
jimbro1000/CoCoDragonMultiPak
This repository contains the designs for a Dragon 32/64 multipak interface based closely on the TRS-80 Color Computer multipak system.

Lago sch is an open-source printed circuit board by lharnaldi, from the lharnaldi/lago_sch repository on GitHub. It is a 2-layer board of 98.9 × 84.4 mm with 132 parts on 94 nets, routed with 836 tracks and 116 vias.
It is built around the LM2596S-5.0, LM324 and DB15, with the MBRS340 among its other parts. Its parts include 35 capacitors, 34 resistors, 18 inductors, 10 diodes and 10 connectors.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 10u | Choke_SMD:Choke_SMD_1206_Standard | L7, L8, L9, L10, L11, L12, L13, L14, L15, L16, L17, L18 |
| 6 | 100n | w_smd_cap:c_0805 | C9, C11, C15, C17, C19, C33 |
| 6 | 1u | w_smd_cap:c_0805 | C1, C2, C3, C4, C18, C35 |
| 6 | 220k | Resistors_SMD:R_0805_HandSoldering | R9, R10, R11, R12, R31, R33 |
| 6 | 68k | Resistors_SMD:R_0805_HandSoldering | R1, R2, R3, R4, R32, R34 |
| 6 | TEST_1P | Measurement_Points:Measurement_Point_Round-SMD-Pad_Small | W5, W6, W7, W8, W9, W10 |
| 4 | 100k | Resistors_SMD:R_0805_HandSoldering | R5, R6, R7, R8 |
| 4 | 1nF | w_smd_cap:c_0805 | C5, C6, C7, C8 |
| 4 | 47u@10V | Capacitors_ThroughHole:C_Radial_D6.3_L11.2_P2.5 | C27, C28, C29, C30 |
| 4 | GS2 | horacio_mod:GS2 | GS1, GS2, GS3, GS4 |
| 3 | 470n_100V | w_smd_cap:c_0805 | C14, C21, C26 |
| 3 | Jumper_NO_Small | Pin_Headers:Pin_Header_Straight_1x02 | JP1, JP5, JP6 |
| 2 | 100K | Resistors_SMD:R_0805_HandSoldering | R29, R30 |
| 2 | 10k | Resistors_SMD:R_0805_HandSoldering | R19, R20 |
| 2 | 10u_opt | Capacitors_SMD:C_1812_HandSoldering | C31, C32 |
| 2 | 10u_opt | Inductors_NEOSID:Neosid_Inductor_SM1206 | L5, L6 |
| 2 | 12k | Resistors_SMD:R_0805_HandSoldering | R13, R14 |
| 2 | 180K | Resistors_SMD:R_0805_HandSoldering | R24, R27 |
| 2 | 1k | Resistors_SMD:R_0805_HandSoldering | R23, R26 |
| 2 | 2.2uF | w_smd_cap:c_1206 | C24, C25 |
| 2 | 3.9uH | Inductors:self_cms_we-tpc_XL | L3, L4 |
| 2 | 33k | Resistors_SMD:R_0805_HandSoldering | R15, R16 |
| 2 | CONN_02X13 | Connect:IDC_Header_Straight_26pins | RP_E1, RP_E2 |
| 2 | DB15 | Connect:DB15MC | J1, J2 |
| 2 | I2C_EXT | Pin_Headers:Pin_Header_Straight_1x04 | P3, P4 |
| 2 | MBRS340 | Diodes_SMD:DO-214AB | D9, D10 |
| 2 | Zener_2V5 | w_smd_diode:sod123 | D2, D4 |
| 2 | Zener_3V3 | w_smd_diode:sod123 | D5, D6 |
| 2 | Zener_opt | w_smd_diode:sod123 | D1, D3 |
| 1 | +12V_in | Measurement_Points:Measurement_Point_Round-SMD-Pad_Small | W11 |
| 1 | +5V@3A | Measurement_Points:Measurement_Point_Round-SMD-Pad_Small | W12 |
| 1 | -3V3@0A4 | Measurement_Points:Measurement_Point_Round-SMD-Pad_Small | W14 |
| 1 | 100 | Resistors_SMD:R_0805_HandSoldering | R28 |
| 1 | 100n_opt | w_smd_cap:c_0805 | C34 |
| 1 | 100u_25V | Capacitors_ThroughHole:C_Radial_D6.3_L11.2_P2.5 | C12 |
| 1 | 10u | Capacitors_SMD:C_1812_HandSoldering | C10 |
| 1 | 15uH | Inductors_NEOSID:Neosid_Inductor_SM-NE56_SMD2220 | L1 |
| 1 | 1K_1% | Resistors_SMD:R_0805_HandSoldering | R17 |
| 1 | 1k_1% | Resistors_SMD:R_0805_HandSoldering | R18 |
| 1 | 220n_100V | w_smd_cap:c_0805 | C23 |
| 1 | 22n_100V | w_smd_cap:c_0805 | C13 |
| 1 | 330u | Capacitors_ThroughHole:C_Radial_D10_L16_P5 | C22 |
| 1 | 3V3@0A4 | Measurement_Points:Measurement_Point_Round-SMD-Pad_Small | W13 |
| 1 | 3k3 | Resistors_SMD:R_0805_HandSoldering | R25 |
| 1 | 3n3_50V | w_smd_cap:c_0805 | C20 |
| 1 | 47u | Capacitors_ThroughHole:C_Radial_D6.3_L11.2_P2.5 | C16 |
| 1 | 560 | Resistors_SMD:R_0805_HandSoldering | R22 |
| 1 | B550C-13-F | Diodes_SMD:SMC_Standard | D8 |
| 1 | BARREL_JACK | Connect:BARREL_JACK | J3 |
| 1 | CONN_01X04 | Pin_Headers:Pin_Header_Straight_1x04 | P6 |
| 1 | CONN_01X06 | Pin_Headers:Pin_Header_Straight_1x06 | P5 |
| 1 | Conn_BMP280 | Pin_Headers:Pin_Header_Straight_1x04 | P2 |
| 1 | Conn_GPS | Pin_Headers:Pin_Header_Straight_1x08 | P1 |
| 1 | Fuse | Resistors_SMD:R_0805_HandSoldering | R21 |
| 1 | HEADER_16 | Pin_Headers:Pin_Header_Straight_1x16 | J4 |
| 1 | Jumper | Pin_Headers:Pin_Header_Straight_1x02 | JP7 |
| 1 | LM2596 | TO_SOT_Packages_SMD:TO-263-5Lead | U2 |
| 1 | LM324 | SMD_Packages:SOIC-14_N | U1 |
| 1 | LT8471 | Housings_SSOP:TSSOP-20_4.4x6.5mm_Pitch0.65mm | U3 |
| 1 | Led_Small | w_smd_diode:sod123 | D7 |
| 1 | SRP1265-470M 47u | Inductors:SELF-WE-PD-XXL | L2 |
The 130 most common of 132 parts.

jimbro1000/CoCoDragonMultiPak
This repository contains the designs for a Dragon 32/64 multipak interface based closely on the TRS-80 Color Computer multipak system.


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dennis9819/Z8C-Homebrew-Computer
To easily develop for my Z80 homebrew system, I designed a simple assempler development environment. This packs the following tasks into one script: zmac assembly object file creation (for xmodem upload) monitor file…
It measures 98.9 × 84.4 mm and has 2 copper layers, 1.6 mm thick.
132 parts, built around the LM2596S-5.0, LM324, DB15 and MBRS340. 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 lharnaldi/lago_sch repository on GitHub, at the commit this page was made from: the board is lago_sch.kicad_pcb and its schematic Connectors.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 lharnaldi before reusing the design.