01 · Motherboard cards
Weighing Scale PCB.
The brain of every Eagle Weigh scale. Twelve-plus card families — designed in-house, manufactured on our own SMT line, and tuned per application. Premium boards run the 24-bit ADS1130 (Texas Instruments, USA); economy families use the XM24L or ADC0809 (Taiwan) — chosen to match the application's accuracy and cost target.
12+Families
3ADC chip options
90hMax battery
1.6mmFR4 board
EGL S0 SMD
DOUBLE PCB · 6V
EGL S1 SMD
SINGLE 1130 PCB · 6V
EGL S2 SMD
SINGLE PCB · 6V
EGL S7
4V / 6V
EGL S8
MULTI PCB · 4V / 6V
EGL S14 SMD
6V
EGL CHOTU
4V · ECONOMY
EGL MINI PCB
4V · COMPACT
EGL J-800
JEWELLERY · 5-10 mg → 600 g
EGL PC 01
PRICE COMPUTING · POS · PIECE COUNTING
SPECIAL TYPES
MILK · TANK · BABY · BLUETOOTH HC05
EGL SET-POINT
3 or 4-STEP OUTPUT · 6V
Common to every Eagle Weigh card: 3 capacities × 3-step accuracy · auto/dummy zero · air-locking · cal-lock · sleep mode · moisture-protective coating · 1.6 mm FR4 · firmware signature "Bobby 7777".
Which one for you?
Pick the right card.
A quick decision matrix. Detailed spec tables on each model's page.
| If you're building… | Recommended cards | Why |
|---|---|---|
| A retail price-computing scale | PC01 | Built-in piece-counting, printer interface, RTC. |
| A jewellery scale (5–10 mg → 600 g) | J800 / J400 | Highest-resolution ADC, 5-key UI tuned for jewellery. |
| A weighbridge indicator | S0 · S1 | ADS1130 + RS232, up to 90 h battery, dual-LED. |
| A bench / industrial platform scale | S2 · S7 · S8 | Mid-tier ADC, keypad protection, multi-PCB option. |
| An economy table-top scale | CHOTU · MINI · S14 | Compact 78×36 mm or 63.5×63.5 mm, 4V economy bands. |
| A milk / dairy weighing terminal | Milk (9600) special card | 9600-baud comm tuned for dairy weighbridges. |
| A baby / patient scale | Baby Weighing special | Stabilisation logic for moving subjects. |
| An IoT / wireless scale | Bluetooth (HC05) special | 10 m wireless range; pairs with our Android logger. |