Table of Contents
LRE5-LCD2
* 5 Encoders
* 5 Ledrings
* 5 ENC-Switchs
* 5 3LEDS for ENC-Switches
* 1 Shift-Switch
* 2 1306 7Pin- OLED-LCDs
controlled from a STM32F4 Microcontroller dipcoref4,CV1
build for CV1 as UI-Expansion-PCB.
ready for Pick and Place
–all Parts except the ULN-Driver-ICs are on the Top-Side, and are presoldered..
Hardware Requirements
- CV1 or other MIOS32 Cores
- Soldering Iron - with a Dip that can Handle Thruhole-Parts, solder Paste…
- dont forget the Micromatch connectors, and Ribbon cables
Shematic
Building
The Design is optimized for Pick and Place > allmost all SMD Parts are on the Top-PCB
The Rest is Thruhole > easy, the ULN Driver are SMD and has to be handsolderd
now waiting for Presoldered PCBs
10 assambled pick and place PCBs costs 60€ in 2021… so one PCB costs arround 6€
but we have to add the other parts wich costs 47€ incl taxes incl shipping in 2023.
a big cost is the frontplate which cost 20€… but if you panalize the frontpanel and order more off it you could reduce this costs massive!
so 47+6€= 53€ for one LRE5-LCD2-PCB. exclusive off this calculation are Knops for the Encoders.
BOM LCSC
these are the parts which must be handsoldered
| Comment | Designator | Footprint | LCSC Part Number | Lot |
|---|---|---|---|---|
| ULN2003ADRW | Q1-Q3 | SOIC-18_300mil | C9683 a`ca.0,8€ exclTaxes | 3 |
| PEC11R-4015F-S24 | ENC1-ENC5 | tht | C143789mouser-a 1,94€ exclTaxes | 5 |
| Micromatch-2×5-fema | LCDi1,LCDo1,Ji89,Jo89 | tht | C590954 mouser-a`0,774€ exclTaxes | 4 |
| Micromatch-2×5-male | LCDi1,LCDo1,Ji89,Jo89 | tht | C590954 mouser-a`0,882€ exclTaxes | 4 |
| Switch | S1 | tht | C273513 | 1 |
S1 can be stuffed with: Matias, CherryMX, MEC-3FTH9, TL1265
Matias@midiphy 5pcs = 3,49€ incl Tax excl shipping
Caps@midipy 5pcs = 10€ incl tax excl shipping
Also you will need one ultrabright LED to illuminate the Matias Switch, the mounting at the moment is a bit diy (hot glue gun)…
BOM AliExpress
2xSSD1306-7Pin - a`1,47€ excl import taxes and shipping.
BOM LCSC
these are the parts which are presoldered by the Pick and Place Machine
| Comment | Designator | Footprint | LCSC Part Number |
|---|---|---|---|
| 47uF | C1,C2 | 1206 | C96123 |
| 100nF | C3,C4,C7,C8 | 0805 | C49678 |
| 10uF | C5,C6 | 1206 | C13585 |
| LED-Yellow | Da1,Db1,Dc1,Dd1,De1-Da19,Db19,Dc19,Dd19,De19 | 0603 | C72038 |
| 180 | R1-R5 | 0603 | C22828 |
| 1K | R6,R7 | 1206 | C4410 |
| 10k | R8-R25 | 0603 | C25804 |
| 74HC595 | U1-U3 | SOIC-16 | C5947 |
| 74HC165 | U4,U5 | SOIC-16 | C5613 |
+ Ribbon Cables for example (MOUSER):
710-63911015521CAB|1
Frontpanel
I made a DXF File which you can send to Formulor in Germany
Here a DXF with one Frontplate, ready to upload to Formulor:
I payed 20€ incl taxes and sipping from Germany to Austria
formulor-p1-1xlre5lcd2.dxf.zip
Recommend Material from Formulor:
3mm Acrylglas GS 181x181mm, mittelgrau transparent(7C83)
If you plan to build a MSQ-CC-LRE wit your LRE5LCD2, then you may save money by use this panalized DXF, where 2x LRE5LCD Panels + 2x MSQ-CC-LRE Panels are placed:
fp-lre-oled-2x-euro-formular-2xlre5lcd2.zip ready to upload to Formulor:
I payed 45€ incl taxes and sipping from Germany to Austria
Recommend Material from Formulor:
3mm Acrylglas GS 384x384mm, mittelgrau transparent(7C83)
PART Locations
To Do
making Revision 2, because in 1 the Transistor-Array-Fottprint is wrong and had to bridged
Community users working on it
- Phatline = PCB & Shematic, UI-Programming, Documentation…
Just let a Private message on the forum to user already involved.