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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)7 F l! f- }! n5 X
- #include <ESP8266HTTPClient.h>
b$ _& ?# y: b! Q& O& p - #include <ESP8266WiFi.h>1 M* v \7 a b
- #include <ESP8266WiFiMulti.h>
9 W1 O. H2 l7 U" r8 D. z - #include <ESP8266WebServer.h>
4 a4 U4 |, b5 q6 }6 Q - #include <arduino.h>
0 o4 v3 w5 Q; Q i8 D3 s9 B - ESP8266WiFiMulti WiFiMulti;1 Y5 p2 H: ~1 ?8 y
- ESP8266WebServer server(80);" l/ Z1 E4 n* l# H r0 | N
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";1 G6 K. x4 n/ o9 n4 a
- ADC_MODE(ADC_VCC);) ~4 b' v2 r, f& s
- void setup() {
/ L5 u- i6 Z7 P/ ]! v- K - Serial.begin(115200);: F7 }1 s& ]) _
- Serial.print("\r\n\n");
& C) V" M ]: H" ~' A - pinMode(2,OUTPUT);
. U5 j3 T' B$ H3 \$ t$ t& o3 D - // WIFI7 y3 |' q I: @$ F
- WiFi.mode(WIFI_STA);9 e% U/ y1 h/ @9 _" f" m' Q7 z3 P+ N
- WiFi.hostname("Sparkle");
, L0 U% Q: @7 k$ o+ P - WiFiMulti.addAP("wifi ssid", "wifi password");
& O2 w. v0 c4 T8 ` - int tryNum = 15;. c- Y1 t% {5 T5 O/ p; [
- Serial.print("Connect WiFi");1 ]9 ?$ v; p( Q. U! Z
- while (WiFiMulti.run() != WL_CONNECTED) { |; Z" q4 x/ [& v
- digitalWrite(2,0);) m3 Q: j/ P* K N2 J
- delay(200);' v+ C. M" t$ b3 w3 c$ q
- digitalWrite(2,1);
: a* U0 i, h7 p8 D8 G7 a - delay(300);
: w- i7 }& @$ R) D' J - Serial.print(".");8 G& U8 W5 q h
- tryNum--;; M+ _1 S: ]3 d C% @
- if (tryNum == 0) {4 \* g: b* I8 u$ |0 j& s* L% `
- // 1min* a4 q" E* H8 L& d' g; u
- // ESP.deepSleep(60e6);
+ `+ B `1 g3 F - ESP.deepSleep(0);1 C7 ~) b' M" ]) E& a
- }
" j5 H* g( K( V1 K# _( q- L3 P - }
4 h5 Y7 A2 }* P- e" q - Serial.print("\r\n");
/ z3 h7 A" S6 \0 r5 P - digitalWrite(2,1);
9 I: g' V: R2 r - Serial.print("IP address : ");! `9 o4 n' \3 c r! r3 S+ Q
- Serial.println(WiFi.localIP());% y$ b( Q7 P }
- server.on("/", HTTP_GET, [](){( K6 s$ `' C* s2 V, M7 w
- server.sendHeader("Connection", "close");( M& M; M' O8 v5 P) e! M
- server.send(200, "text/html", serverIndex);
, G K2 G4 g+ w9 Q) L- e: ~ - });' `6 u6 P5 \; s; U d. c
- server.on("/update", HTTP_POST, [](){) |& ?5 A0 |. F
- server.sendHeader("Connection", "close");7 i5 ~ G5 B6 \
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");; X, e, A1 ]* U7 L0 u
- ESP.restart();8 b) g5 U8 i: E1 p# q
- },[](){) X! F& \9 ?# n
- HTTPUpload& upload = server.upload();. B" ~ I$ P2 n" x0 B: B* o& r
- if(upload.status == UPLOAD_FILE_START){9 s% P- S: i* @4 J, Y* o7 u9 }
- Serial.setDebugOutput(true);- N. a B. h5 D$ M; I
- Serial.printf("Update: %s\n", upload.filename.c_str());
7 ?# }6 e7 C! g5 \ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;! [4 {8 l) G) s
- if(!Update.begin(maxSketchSpace)){
: I0 R* T% }, B% n - Update.printError(Serial);
7 g2 U0 n& }, U# S& U+ @ - }" Y; _) }% c& f1 r( i
- } else if(upload.status == UPLOAD_FILE_WRITE){% G# Z' T2 t& N, e
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
2 K9 M! C8 N: `% `4 q - Update.printError(Serial);) ^0 t9 P. z! s+ _
- }" l$ q+ M! D' X' v: [% d
- } else if(upload.status == UPLOAD_FILE_END){
M+ N' Z( L' n# P/ E - if(Update.end(true)){
4 x9 \+ f# d$ I" E) i( N0 l - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);( Q% ^! G% z0 @# s8 Z7 y, ]! n
- } else {8 K1 R9 l9 g6 P1 _$ z) ?2 q0 v. q6 O
- Update.printError(Serial);
7 b/ g3 }0 \( h# s1 V$ j5 A/ o: h6 \ - }
: j, D+ z6 q+ j - Serial.setDebugOutput(false);
: I, V+ [0 r4 Q, g$ v3 B0 K - }
3 g/ q! I* r2 R - yield();
4 _. m: }# M) G3 C3 E; c$ J+ B - });
' ]+ p' ]" Q0 R -
6 i. w, w b) ]! a - digitalWrite(2,0);
5 a# ?& \1 r. \ s! L. V) s) G }3 ~4 R - mainAction();! d" c4 i+ f) } N. S9 V8 S
- if (digitalRead(0)){
L0 S# P# E! K& l - ESP.deepSleep(0);
1 g r3 R9 J" \4 T - } else {
" ?% ~ u6 @/ |& |. \' Q. F3 |/ _# x - server.begin();2 R7 y o/ J, V: q$ @- K- t2 r, O
- }" [5 @ {8 L: j0 z) b; l
- }' e# u; h( O9 A
- void loop() {
" ~$ r; T% d( b - server.handleClient();4 f! a, I' ~$ U
- delay(1);! f& P5 e$ c' m- s6 |. ^4 A
- }7 D6 V6 x! G/ g+ X% _6 O: f
- String doGet(String url){' O' J6 |0 x0 z& `* @
- if ((WiFiMulti.run() == WL_CONNECTED)) {
& w% ?9 r" d o1 x$ Z - HTTPClient http;3 W; |! b; N' X O v/ x$ Z
- Serial.println("[HTTP] begin...");
) _" o# }* U) u4 [* L# h r - if (url.startsWith("https")) {" ?. W) H1 r9 w% a( C/ l' g, d
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");5 P+ `# \+ d& C. C
- } else {, G6 F/ X) {% X0 w! O
- http.begin(url);
% X* ~! J9 F/ s' t1 b - }" o1 x. z- o2 a6 [! j/ @
- Serial.println("[HTTP] GET...");
% A- d& ?/ q5 r0 ~. r# d/ ]) l T - int httpCode = http.GET();- }: d2 [: L" V z2 W6 K3 B
- if (httpCode > 0) {
3 F6 O# `) v% w6 r* H - Serial.printf("[HTTP] code: %d\n", httpCode);
4 D8 J7 w+ G% }- \& L3 m0 Z% H - if (httpCode == HTTP_CODE_OK) {7 D; F( b9 c7 e1 }
- String payload = http.getString();' E3 e2 L: F9 N/ W: k8 z: W
- Serial.println(payload);( U8 u8 S D1 x4 Q- n5 h
- Serial.print("\r\n");# Q' L- S' b) Z: a6 W
- return payload;- Y$ @7 d$ W4 x; s
- }
0 {0 j, n7 s# }8 i5 |* ^ Y - } else {
3 b& R" @2 x. P& g - Serial.printf("[HTTP] GET... failed, error: %s\n",+ t- D! t4 f5 L/ M4 a
- http.errorToString(httpCode).c_str());" y' k" J& j; y- q4 ~* P6 p
- }9 |# T/ Q5 V0 h: p
- http.end();. a# h9 L6 } J2 F5 m: m4 i
- return "";
( S8 \6 a0 a% |0 W7 ? - }
) | s1 S8 D& D0 ~2 y3 Q* H - }7 V! f: _2 p0 d+ t7 i( [6 h
- void mainAction() {2 z2 Z+ X: J$ J7 Q. h2 Z, ^
- // 发送请求
+ g5 _! P4 _1 X- F2 G- a5 W - doGet("http://google.cn");, u6 j+ a4 m, D2 R
- }: d3 P% x" a8 w2 M) m
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