Re: Is there interest in a standalone low power miner?

Quote from: kano on August 05, 2023, 02:16:18 PM

Seriously?

Took me less than an hour to analyse the work data control necessary for an S19 chip.
Of course someone else spent many hours connecting up all the hardware to dump and format the data so I could do it,
but if you're gonna say it's that hard without trying, then I'd worry about anyone using anything you built.

While 'we' do already have the info to do a 3rd party miner with the chip, unfortunately it's not a priority at the moment Sad

Ok, now try to do it without access to miner (and a pool(emulation) so you know what data is send to the chips) Wink

I've got a diy logger, but no miner.. The hardware side is not a big problem though.
I've done my part in dissecting protocols and the underlying meaning of the data that goes over a unknown bus by analyzing the communication of the meade autostar system and constructed a meade compatible servo and stepper motor driver for astro mounts and I'm sure I could do likewise with x19(+) miners, but without a miner??
I do find it strange that info on X19(+) miners isn't available years after the release of the miners.

On my standalone BM1397 miner; the revised revision Wink

pcb's have arrived and I've built one prototype. Regarding the cost (if you desperately want to know), the bom is something like this (missing the usb connector and optional DG301 screw terminal):

Code:

Part Value Device Package Description MF MPN OC_FARNELL OC_NEWARK PROD_ID
C1,C2,C3,C4,C6,C12,C13,C14,C15,C20,C35,[C37],C38 4.7uF/16V C-EUC0402 C0402 CAPACITOR, European symbol
C5 56pF C-EUC0402 C0402 CAPACITOR, European symbol
C7,C10,C11,C21,C24,C36,C31,C34 100nF C-EUC0402 C0402 CAPACITOR, European symbol
C8,C9,C18,C26 22uF/25V C-EUC0805 C0805 CAPACITOR, European symbol
C16,C17,C22,C23 47uF/6.3V C-EUC0805 C0805 CAPACITOR, European symbol
D1 WS2812 WS2812_5050 WS2812-5X5-4PIN Addressable RGB LED - 1 Wire DIO-12503
ESP32C3-MINI-1 ESP32-C3-MINI-1 ESP32C3MINI ESP32C3MINI
L$2 3.3uH NR201610 NR201610
L4 1uh R-EU_R0402 R0402 RESISTOR, European symbol
R1 49.9k R-EU_R0402 R0402 RESISTOR, European symbol
R2,R4,R10 2k2 R-EU_R0402 R0402 RESISTOR, European symbol
R3,R5 1k5 R-EU_R0402 R0402 RESISTOR, European symbol
R6,R7,R8,R29,R36,R41 1k R-EU_R0402 R0402 RESISTOR, European symbol
R9 82k R-EU_R0402 R0402 RESISTOR, European symbol
R11 20R R-EU_R0402 R0402 RESISTOR, European symbol
R12,R17,R40,R31 4k7 R-EU_R0402 R0402 RESISTOR, European symbol
R13,R25,R26 15k R-EU_R0402 R0402 RESISTOR, European symbol
R14 22R R-EU_R0402 R0402 RESISTOR, European symbol
R16,R22 5k1 R-EU_R0402 R0402 RESISTOR, European symbol
R18 30k R-EU_R0402 R0402 RESISTOR, European symbol
R34 33k R-EU_R0603 R0603 RESISTOR, European symbol
R35 22k R-EU_R0402 R0402 RESISTOR, European symbol
R37 ntc 33k B3950 R-EU_R0402 R0402 RESISTOR, European symbol
T1 2N3904 2N3904 SOT23 NPN TRANSISTOR
U$1 BM1397-1 BM1397AG BM1391
U$2 TPS56C2150Z6-7 TPS56C2150Z6-7 VQFN-HR
U$3 0.68uH L10040 L10040
U$4 XC6206P18 XC6206P SOT23
U$7 SY8113A SY8113A SOT23L-6
U$14 PT8211S PT8211 SO-8
U$22 25MHz OSC3225 3225 Active oscillator 25MHz 3225 1.8V

Most parts are available at jlcpcb (except the bm1397ag) but as good as all parts are extended parts (meaning $3,- per part, ~$100,- per batch of upto 30pcs on top of the part prices).
Efficiency is at 12.5W @ 300GHs when fed with 9V (according to my crappy usb power meter), live stats still on https://solo.ckpool.org/users/1KgwWwBh7qGtcWJ9ZRNTUbVCR1L2qYkzcy (workername": "1KgwWwBh7qGtcWJ9ZRNTUbVCR1L2qYkzcy.test1397_12B")