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Code Issues 944 Packages Projects Releases 10 Wiki Activity

Updated 2.9″ Chroma 29 (markdown)

Skip Hansen
2025-04-27 11:47:55 -07:00
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2.9″-Chroma-29.md

@@ -50,8 +50,13 @@ the following table.
| Y|JA0xxxxxxxB<br>or<br>JA1xxxxxxxB | [edk286 Issue 9](https://github.com/OpenEPaperLink/OpenEPaperLink/assets/4642629/b9cb9b99-83b6-418b-bb90-938cca3a55b2)<br>220-0067-09<br>2015| similar to UC8154 | [WF0290T1PBZ01](https://github.com/OpenEPaperLink/OpenEPaperLink/assets/4642629/757efd5f-58a8-4e63-9203-8971989b2726)|1. EPD pin 4&5 (VGL,VGH) are n/c<br>2. Q2 & Q3 added for nEnable|
| N | JFxxxxxxxxB | [edk286 Issue 12](https://github.com/jjwbruijn/OpenEPaperLink/assets/4642629/7ffb3ac0-856f-4fcb-bce5-9fe58fc8e1ea)<br>220-0067-12<br>2015| ? | [WF0290T1DBZ010E42](https://github.com/jjwbruijn/OpenEPaperLink/assets/4642629/d05beb5e-3ad6-4102-ab54-370bd405b9ad)<br>[cable](https://github.com/jjwbruijn/OpenEPaperLink/assets/4642629/39d32401-1df3-4b57-bef5-32f39535ad41) | Note: Some Issue 9 tags also start with JF<br>these **may be** BWY rather than BWR models. |
| Y| JA1xxxxxxxC | [edk296 Issue 1](https://user-images.githubusercontent.com/1102694/112720670-0b763400-8f00-11eb-93ba-e635734bff6d.jpg)<br>220-0094-01<br>2018 |similar to UC8151C |WFD0290BF33| Rev supported by Dmitry's original firmware |
| Not yet<br>Port started|MExxxxxxxxC | [edk505 Issue4](https://github.com/jjwbruijn/OpenEPaperLink/assets/4642629/9e215e18-6269-4eb7-b318-d2aa57d2d5fe)<br>220-0095-004<br>2019| ? | DEPG0290RWU51011HPB1E|Processor is a CC1310<br> FCC ID: VC7120-0200 |
| Not yet,<br>a port has<br>been started|MExxxxxxxxC | [edk505 Issue4](https://github.com/jjwbruijn/OpenEPaperLink/assets/4642629/9e215e18-6269-4eb7-b318-d2aa57d2d5fe)<br>220-0095-004<br>2019| ? | DEPG0290RWU51011HPB1E|Processor is a CC1310<br> FCC ID: VC7120-0200 |
## Battery Current
The expected battery current while the tag is sleeping between updates is about 1.2 microamps for a JA0xxxxxxxB tag and about 1.7 microamps for a JA0xxxxxxxB tag.
The JA0xxxxxxxB version includes a FET that disconnects the power to the EPD while it isn't being accessed. The JA0xxxxxxxB version does not have this FET which is why the idle current is a little higher.
# General Chroma 29 Info
Known EPD controllers are either similar to the [UC8151](https://www.orientdisplay.com/wp-content/uploads/2022/09/UC8151C.pdf) or the [UC8154](https://v4.cecdn.yun300.cn/100001_1909185148/UC8154.pdf) depending on version.