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Chroma74 Notes

DisplayData Chroma74 JM10201828B FCC ID: VC7120-0157 IC: 8910A - 1200157 61-74000200

https://fccid.io/VC7

Display

NOTE: The QR Code decodes to the the same as the first two lines

WF0750T80BF190E42U59S0 706697470-Y05J WUXI VISION PEAK TECHNOLOGY WFD0750BF19 JD

Board

DISPLAYDATA LTD 2016 EDK293 Issue 2 220-0083-02 EC243951

Exposed Pads

Pad	Pin	Chip	Name	Notes
TP2,TP12	31	CC	RESET_N	Reset Active Low (reset)
TP3,TP13	15	CC	P2_1	D I/O Port 2.1, (debug)
TP4,TP14	VCC	VCC	VCC
TP5,TP15	16	CC	P2_2	D I/O Port 2.2 (clock)
TP6,TP16	6	CC	P0_1	D I/O Port 0.1
TP7,TP17	33	CC	P1_6	D I/O Port 1.6
TP8,TP18	GND	GND	GND
TP9,TP19	32		P1_7	D I/O Port 1.7
TP10		E_INK
TP11		E_INK

CC1110Fx

Voltage Range: 2.0v - 3.6v

NOTE: All Digital I/O Test Pads are not connected to loads

Batteries

6x CR2450 3.2v - 1.8v 680mAh

Series Parallel 2x3 9.6v - 5.4v per string 2Ah

yes - these modern price tags are worth considering.  It is ... with me 
 recently a treaded run to (do not know if this is about the 
 dynamically increased price was angry customer) and curiosity got me 
 let's have a look.
 A dream for the purist - hardly a handful of components:
 six lithium button cells, according to the manufacturer with 2-3 accesses per day 
 a store from Macronix should last for five years
 MX25V8006EM1I-13G MX25U Series 3.6 V 8 Mb (8 M x 1/4 M x 2),
 e.paper-display from Wuxi Vision Peak Technology Corporation Limited with 
 around 7 "and probably 640 x 384 points and from Texas Instruments 
 Processor CC1110F32 Sub-1 GHz wireless MCU with up to 32 kB flash memory

 If I read correctly, the chip will send 315, 433, 868, or 
 915 MHz and also has USB on board.  - that gives space for ideas ...

 The manufacturer displaydata controls the parts via its own 
 Radio router, the labels should work bidirectionally and can 
 be several thousand in one system.

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