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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)
, T7 ^ |/ B6 Q+ I- #include <ESP8266HTTPClient.h>$ N2 B3 N0 t' S: T/ Z
- #include <ESP8266WiFi.h>
7 M) ~+ _7 g0 @9 z - #include <ESP8266WiFiMulti.h>( I0 _" D; ^* `
- #include <ESP8266WebServer.h>
4 B* r( ?/ S! F" c - #include <arduino.h>& T) ~) ]) k6 j
- ESP8266WiFiMulti WiFiMulti;# v; s: ~8 l$ q+ I
- ESP8266WebServer server(80);' u; G$ l3 \( k: \; r6 R+ e/ Z) A+ b( c
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
5 p5 P3 i0 g- G; _4 [ - ADC_MODE(ADC_VCC);/ N/ K) i2 P+ [* V y* O8 O
- void setup() {
& b! b5 D/ c) _* |' u4 E1 b+ x - Serial.begin(115200);6 @+ B8 z! ~( A
- Serial.print("\r\n\n");
, B9 O. g c3 F - pinMode(2,OUTPUT);
: Q, U9 @4 @4 D% l - // WIFI5 d0 T% @- t4 Q5 a
- WiFi.mode(WIFI_STA);: k4 J3 L+ V& G; N
- WiFi.hostname("Sparkle");% B' y; W4 ]" K0 A9 Y
- WiFiMulti.addAP("wifi ssid", "wifi password");0 Z$ _; g @0 M: U! P: }
- int tryNum = 15;
, W& m/ r! U+ J/ Y7 u1 Y - Serial.print("Connect WiFi");5 H7 @- W3 J* t9 [5 j) g9 S: U
- while (WiFiMulti.run() != WL_CONNECTED) {
, n7 A; X2 j" ?6 j) `* S3 y - digitalWrite(2,0);$ u9 S. a7 r8 q, p
- delay(200);
2 v, u0 W% I; ?) X - digitalWrite(2,1);
0 K& m+ X; }) S! j Y - delay(300);4 Z, x, @5 M( F! a
- Serial.print(".");
. X0 `$ Y7 F: Z - tryNum--;
9 N0 _3 H) |* l3 L! j3 R$ p! ~5 O$ v - if (tryNum == 0) {* Q2 D, ^$ I/ R# b, M, f
- // 1min
) X" Q8 L7 R2 D+ E' j. e# ] - // ESP.deepSleep(60e6);% ~. C) H) V$ Y5 R0 n5 N2 J# J
- ESP.deepSleep(0);
P0 l3 s2 U) p6 x - }
' C4 }4 r! p5 v) l V1 ~! {; u0 ^ - }
( N0 p( X$ O% {5 N- f - Serial.print("\r\n");, f+ x+ F" G7 |$ [: I# Z5 g
- digitalWrite(2,1);
; C( u: v% i9 P e* {. W - Serial.print("IP address : ");
/ d7 D& Y+ s" e% q! G - Serial.println(WiFi.localIP());
" F# S( M3 _1 Z' N2 o0 v - server.on("/", HTTP_GET, [](){5 j7 t. V( D" o2 g
- server.sendHeader("Connection", "close");
5 ?6 }* P. f0 I) d. J - server.send(200, "text/html", serverIndex);1 d9 ^. |) k* p9 p8 y) {4 k) [! O [
- });
$ Q4 T2 M0 g6 w0 L' r - server.on("/update", HTTP_POST, [](){& O$ b1 _9 m, c
- server.sendHeader("Connection", "close");0 ~8 @' i) V! P9 _% |
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
# h1 K) H! N2 X( J& H# V - ESP.restart();# ]- r& K5 {8 b2 t
- },[](){
0 q* e! [) b9 N - HTTPUpload& upload = server.upload();! k4 k v2 B$ S0 k1 U( T
- if(upload.status == UPLOAD_FILE_START){* V7 O/ u8 a" \1 X& k
- Serial.setDebugOutput(true);
+ K7 x1 ~2 ]1 k - Serial.printf("Update: %s\n", upload.filename.c_str());: }9 q6 F6 k. M% f- }
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;- Z& Y: g4 u3 d5 K2 D1 \0 P, I( h* e
- if(!Update.begin(maxSketchSpace)){" ?. ^0 D( n6 c4 t8 _
- Update.printError(Serial);
8 q' g7 K7 E! I - }( r7 @& k3 ]# G& u
- } else if(upload.status == UPLOAD_FILE_WRITE){: K! S- Q" d; S) X* a' e/ \
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
6 \+ i. b$ N i- K- p+ B5 T - Update.printError(Serial);
8 O8 C7 Y2 s; v0 r" C8 ? - }
+ S! e4 M- S( y7 x3 V - } else if(upload.status == UPLOAD_FILE_END){- {% M4 b0 P9 D, a
- if(Update.end(true)){
; s( E: _& h$ C - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);1 H: {3 i) A; }+ i( H1 r6 Z
- } else {+ C. m5 e5 T& W* O6 ~2 C. a
- Update.printError(Serial);2 ^2 A. E7 v2 D) X' n: e: c. q
- }3 d, z8 }6 U7 q0 Q
- Serial.setDebugOutput(false);. m4 X1 k9 K& M: b! C7 I6 u- ?
- }
, j& d' Q+ o) w, S - yield();2 u& x& b6 e+ b4 G% q: ?/ w
- });# j; I9 s8 Q+ m% q d* |' X
-
, J4 D8 z+ Q( B; b- E! V6 J - digitalWrite(2,0);, A1 e4 x/ _) q0 l$ B
- mainAction();) ?4 Y1 l2 ?# U8 b8 n+ X
- if (digitalRead(0)){* _, n( v, L% m1 z1 V) ?& l1 Z
- ESP.deepSleep(0);- ~2 Y5 i' o* s9 s" g
- } else {9 `0 S; |5 h- v: A3 M, `3 Y
- server.begin();
4 e) S$ w; ^. U6 T0 U' `2 { - }
- @) d% V+ G! C( ]8 r - }; Z* d- b ~4 i; \
- void loop() {
( S3 \9 z0 g7 |) I7 M3 _, G# F5 A I - server.handleClient();
: m- Q# h8 G; b) e6 S2 M- b - delay(1);6 X0 W) p+ @7 A, l5 |; \+ a
- }
: {- ]7 p$ w4 F. k - String doGet(String url){
) U' A5 u ~+ ^# H - if ((WiFiMulti.run() == WL_CONNECTED)) {
" d5 M `' i( j2 [" z+ s - HTTPClient http;
" D; H; g% C7 M1 X - Serial.println("[HTTP] begin...");
- t+ a! T7 q4 N- t - if (url.startsWith("https")) {5 [6 v" h! c! U( v" L6 L
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");2 H3 c5 U8 @. ~
- } else {
v+ b5 S2 W `8 q5 M* o# m$ e - http.begin(url);5 c" z, q; \+ v. k: c
- }
; ^# V+ n# K8 ~* }$ p% h - Serial.println("[HTTP] GET...");
9 ~! M8 ?9 _. Q: i. } - int httpCode = http.GET();
& e( A5 @" ]1 T( p - if (httpCode > 0) {! B) W% `0 U& _
- Serial.printf("[HTTP] code: %d\n", httpCode);
; M5 z$ X( c: o$ A1 S3 `4 W, w) T - if (httpCode == HTTP_CODE_OK) {
0 ?( }; T. m/ t, S8 ]4 _ - String payload = http.getString();
2 v; {! T4 O( M - Serial.println(payload);+ x2 j5 u$ a9 J9 ^5 O
- Serial.print("\r\n");
/ W; N; B$ T: ]" I! @: } - return payload;+ Z' C$ v9 `4 w% {% x9 \
- }
, ^; c2 G, m9 U. T - } else {" f, r X- V+ p# Y @% e; g" b
- Serial.printf("[HTTP] GET... failed, error: %s\n",. `* ~5 d1 k9 H0 [" E, U: }+ j
- http.errorToString(httpCode).c_str());* g; ?' h0 A m, @5 o* l
- }- ~! n3 M D! n" T7 B" R
- http.end();4 j0 ~! s9 v( C) V, J( C* ]/ C
- return "";! h& q$ [$ I ~1 T7 J( B% Y2 E# r
- }# Z* j5 c8 x; [7 e: {" h
- }0 o9 M( t7 `& j- ] F4 N$ w
- void mainAction() {
: d+ \' b. ^' Q7 m/ U9 m) E - // 发送请求
( a& @2 \" Z. t2 F, s - doGet("http://google.cn");( ^3 ]& g4 K7 {, D4 \& V
- }
6 k& C1 x" Q$ O
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