Campus Card and payment-code sharing

The Campus wallet plugin covers the Campus Card, network fee, bath card and dorm electricity. The Share payment code plugin lends your Campus Card payment code to a friend for a while. Both need your campus sign-in.

Open the campus walletCopy Anchor Link

Any of these works:

• Open Settings → Plugins → Campus wallet and, under Open, tap Campus wallet or Campus Card payment code.
• Put the Campus Card balance widget on your dashboard and tap Top up or Pay on it.
• Ask the assistant in chat, for example "How much is left on my campus card?", or type /balance.

The Campus wallet screen shows:

• Campus Card: the balance, today's spending and the daily limit. It says so if the card is reported lost or frozen.
• Network fee: your network account balance and this month's usage. Pay network fee opens the university's payment platform, where you pay with WeChat or Alipay.
• Bath card: your latest online top-ups. The bath card balance lives on the card's chip and can't be checked online.
• Dorm electricity: how to check and pay. Dorm electricity can only be paid in the WeChat account 动力中心收费服务号 for now; the app can't read your meter or pay for you.

Payment codeCopy Anchor Link

The payment code is for scan-to-pay in canteens and shops.

1. Open Campus Card payment code, or tap Pay on the Campus Card balance widget.
2. Show the code to the cashier.

The code refreshes every 30 seconds. While the screen is open, brightness goes to maximum and screenshots are blocked.

Payment codes only work in digital card mode (数字卡). If your card is in another mode, the screen says Switch to digital card; tap the button with that name. After switching, your physical card or phone NFC may stop working. To switch back, tap Card mode on the payment code screen and choose another mode.

The payment code is only shown on the screen you open. It is never given to the assistant, and the assistant can't show it for you.

Top upCopy Anchor Link

1. Tap Top up on the Campus wallet screen or the Campus Card balance widget.
2. Choose an amount, or enter a whole number from 1 to 1000 in Other amount (¥).
3. The app creates a top-up order at the university's cashier and opens it in the browser. Pay with WeChat or Alipay there.
4. After paying, tap your card once on a canteen POS for the balance to update.

The app never handles the money; you make every payment yourself in WeChat or Alipay. You can also ask the assistant to top up: it creates the order and opens the cashier, and you still pay. Top-ups are a Money action, which you can set to Ask first in the plugin's permissions; see Plugins and permissions.

Bath card top-ups are 10 to 100 yuan and are paid under "我的订单" (My orders) on the university's payment platform. After paying, tap the bath card on a top-up kiosk for the money to go onto the card.

Share your payment codeCopy Anchor Link

Share payment code lends your payment code to a friend for a while: they scan to pay, and the money comes from your Campus Card. Codes are made on your phone and relayed to your friend encrypted through the cloud service, which can't read them. The server can see when a share starts and ends, and the viewer's IP address.

Follow the Peking University Campus Card rules (北京大学一卡通管理办法), and share only with people you trust.

Before you startCopy Anchor Link

1. Sign in to your campus account.
2. Choose a server in Settings → Cloud; see Settings and your data → Cloud.
3. Allow Share payment code to use the cloud. The first time, the app asks "“Share payment code” wants to use the cloud"; tap Allow. You can also turn on Allow cloud under Cloud in Settings → Plugins → Share payment code.
4. Switch your card to digital card mode.

Create a shareCopy Anchor Link

1. On the payment code screen, tap Share with a friend, or type /share.
2. Read Before you share.
3. Choose Valid for: 10 min, 30 min, 2 hours or Today.
4. Choose a Spend cap: ¥20, ¥50, ¥100, ¥200 or No cap.
5. Optionally, under Check the viewer, set a Name check (tap characters of your name to hide them; your friend fills in the blanks) or a PIN (4 to 8 digits). Tell your friend the PIN in person or separately, not with the link.
6. Tap Create share link.
7. Tap Send to a friend to send the link, or let your friend scan the QR code on the screen.

Your friend opens the link in a browser; they don't need the app. Only the first person who opens the link can use it. Five wrong answers close the share.

While sharingCopy Anchor Link

Stay online while sharing. A "Sharing payment code" notification stays up on your phone. The Share payment code screen (Settings → Plugins → Share payment code → Share payment code) shows whether your friend is viewing, how many codes were shown and how much was spent. From there you can:

• Stop sharing right away.
• Add 30 min.
• Reset viewer, so the next person who opens the link can view it.
• Send link again.

A share also ends by itself when it expires, reaches the spend cap, or gets too many wrong answers. The cap is checked after each payment, so the last one can go slightly over. Your own spending during the share counts too, and your card's own daily limit still applies.