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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)
% F3 v! X( N9 J# b- #include <ESP8266HTTPClient.h>; p$ G0 N' o2 n) _5 d# T
- #include <ESP8266WiFi.h>2 |( y( a. L! u
- #include <ESP8266WiFiMulti.h>
5 f! v5 r8 }- V" u) }! I+ m4 {8 J9 X d5 f - #include <ESP8266WebServer.h># p! \& s* v4 m! G8 `2 ]
- #include <arduino.h>; Y8 f2 _! U% b T5 ]# l& m
- ESP8266WiFiMulti WiFiMulti;
0 x4 X1 ]: j2 N( w# R - ESP8266WebServer server(80);
' @5 K% `* _" V$ a* w - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
* d5 x7 F. y5 u, ~: O - ADC_MODE(ADC_VCC);
- n* |. e8 A4 D/ ^% I4 x, X7 z - void setup() {
, L Q% k4 b4 {1 K( E' s* V3 T - Serial.begin(115200);+ h( P! \4 Q3 S5 g0 p9 l
- Serial.print("\r\n\n");
6 G8 _: q; m) {) M; Z: V. ?: ^% k - pinMode(2,OUTPUT);$ O1 I- K H0 r" [' D2 F2 m
- // WIFI
$ n. `* E* X, ~6 J9 V - WiFi.mode(WIFI_STA);! c( `) m8 K n& `/ n7 Y
- WiFi.hostname("Sparkle");- h! o5 ^- B; D5 \ @5 [
- WiFiMulti.addAP("wifi ssid", "wifi password");
* R% X3 ~% J9 ^2 f6 J- ` - int tryNum = 15;( M6 H* d( a( S3 b
- Serial.print("Connect WiFi");" L) l1 k) a) b' r" k* }
- while (WiFiMulti.run() != WL_CONNECTED) {% f% ]* G( y2 S8 c1 |
- digitalWrite(2,0);4 ]5 L& M' R& h q& e6 B
- delay(200);7 V+ Z( q2 M% s" h
- digitalWrite(2,1);2 u4 {1 G8 A1 k
- delay(300);
( O) O' P3 t% ?" _# B% X: O h - Serial.print(".");
/ n$ W% Y3 ~6 R& g v! H, c0 U - tryNum--;
8 x- J9 P7 j" X" Y" l! E - if (tryNum == 0) {: D# y8 N2 }) E& z8 f8 C& Q
- // 1min
1 m) K5 A. V* c6 n& v9 h - // ESP.deepSleep(60e6);
; y. O( J9 _. I; r - ESP.deepSleep(0);" X3 ~1 _7 T5 D# h
- }, x5 i% E7 e2 \3 j+ m3 @
- }0 v7 A; m9 T3 Y' y1 \" p
- Serial.print("\r\n");
9 U7 [6 u) `$ a; ]6 | g - digitalWrite(2,1);6 v4 o+ L: O6 Q. k2 E" U( a
- Serial.print("IP address : ");4 e. r; [/ x' l2 G
- Serial.println(WiFi.localIP());
8 F; G# b% s" w6 h - server.on("/", HTTP_GET, [](){2 Y3 ?8 \* `4 o% X1 t: ?5 w( h
- server.sendHeader("Connection", "close");! v# n. W" `7 l1 g7 C: w, G
- server.send(200, "text/html", serverIndex);# S* s, _' t# |# E( ^% Y8 |& q
- });
1 o; v6 Z2 {0 I& ^( T - server.on("/update", HTTP_POST, [](){
, s1 M8 P0 \% `, ]% N" N- a - server.sendHeader("Connection", "close");
& i3 \* L0 w" t - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
6 u3 j& E2 M4 E7 M/ A2 z - ESP.restart();
, s1 _) t1 Y. @8 \ - },[](){/ E$ j7 C7 `7 [7 E; D1 a: A x
- HTTPUpload& upload = server.upload();
' X& A! Q9 c, Q; j3 k - if(upload.status == UPLOAD_FILE_START){
6 A* u2 D0 W0 L/ c: g, S - Serial.setDebugOutput(true);3 G0 n; y! C7 v2 H$ T
- Serial.printf("Update: %s\n", upload.filename.c_str());
- N* D1 }, A' d - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
' _8 P; D% R2 T N3 o8 |, |. o - if(!Update.begin(maxSketchSpace)){( a- z7 ~: G( S* H: `
- Update.printError(Serial);9 x7 [; ^3 q, o$ E; K
- }2 Q: ~4 v5 r0 {* |) g! I; o
- } else if(upload.status == UPLOAD_FILE_WRITE){2 j9 S3 C9 N; V% e8 z9 L( R
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
& Y9 l; ?9 e1 J; S - Update.printError(Serial);; U6 \# n2 l0 r0 Z# x- M" Y. \
- }6 n% d2 a1 J( v- o$ @6 L
- } else if(upload.status == UPLOAD_FILE_END){
7 p7 N8 K3 y( N- G3 r - if(Update.end(true)){. I% V" s& B e% y9 a3 \
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
: g+ L0 k- i4 e1 ]7 c8 w+ `6 T - } else {
- y0 n1 m" c$ b0 g' S0 r" J5 V - Update.printError(Serial);! e$ q' Y0 g7 a, d$ Y j2 s9 S/ ^5 G
- }/ K, Y% X" e! k
- Serial.setDebugOutput(false);$ @% `, P- g; q3 B' w) R3 P
- }" i; Y1 ]7 X, h3 W9 ~! S% B
- yield();7 P' u2 f1 j" p! U& D6 C% B
- });9 i# ]2 F9 Z! X* k/ \ K
-
: a5 H. ]1 _5 ~0 W6 r# U - digitalWrite(2,0);
+ h3 t0 l: O, B% Y2 n - mainAction();
' A+ R" V4 \3 Y `' K: |* |$ a1 K - if (digitalRead(0)){
4 `5 Z( s2 H/ T1 x) w3 a* [8 S2 L - ESP.deepSleep(0);
/ B' H2 {4 s! _! `5 a+ A - } else {: [/ o# p1 g6 z6 y7 T) r
- server.begin(); q9 e( \6 M( t; M$ V
- }
# i; Y2 M; R% L5 @/ h& {) `* L9 H - }
# ^; B: @0 ]' ]7 ^7 b: ]3 u - void loop() {4 ?" L, q S: x; t, ^9 E
- server.handleClient();
* [$ L3 z' b2 S" W - delay(1);
1 g# G5 D, d( z6 V+ U - }
# s7 F% l" `. o% [ - String doGet(String url){ h6 Y9 K6 c# b) i) l t" f- h
- if ((WiFiMulti.run() == WL_CONNECTED)) {. Y* N1 `- i$ Z0 p
- HTTPClient http;; l; n f. R, C+ `1 {
- Serial.println("[HTTP] begin...");
! x* `5 v7 D: ~ - if (url.startsWith("https")) {& e- N" G. a# T' k5 M
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
. R$ G9 @/ ~6 o0 u" Q: @ - } else {
; B) q0 A I5 W( @( h! W) T - http.begin(url);
% ?% {1 p% W7 k5 r" `* L7 E - }+ ~' b! Q. W& \& c
- Serial.println("[HTTP] GET...");$ R; y) ]8 \; s# d
- int httpCode = http.GET();
! V9 ~$ w; v* F ~( p0 l' `: ]$ z* a - if (httpCode > 0) {: `! q* d0 L( C. r7 n9 e
- Serial.printf("[HTTP] code: %d\n", httpCode);
5 C9 m0 Q \' | - if (httpCode == HTTP_CODE_OK) {! [# f" A0 q' ^0 m4 d* i9 l
- String payload = http.getString();
8 {. J& a5 D4 v9 E* ]8 r' _ - Serial.println(payload);
9 G' i, W* Y$ I( N - Serial.print("\r\n");4 X7 F- X) B! M4 ~
- return payload;/ ] G9 g- A0 f( |& C+ d& }
- }
6 o7 o& y) `6 O; c3 ~- ]1 M - } else {% G6 x0 ]' i2 \1 W3 _
- Serial.printf("[HTTP] GET... failed, error: %s\n",
0 @" Q' V- v1 r9 d' \4 J2 Q2 y - http.errorToString(httpCode).c_str());
% a Z( E' ]! L3 d! S - }8 W7 U! t0 Y6 m, D4 ]+ |
- http.end();) `6 B% B' t1 _/ F
- return "";
9 Q5 i& x. E z4 X - }
$ N2 i9 r% b6 r$ q- J) b; K: } - }( L& y3 ^% d- X8 d7 E- J+ \( r0 o* N
- void mainAction() {. M3 n1 X8 T) a. x
- // 发送请求$ D1 w, s# i9 D: \ _
- doGet("http://google.cn");
! C) h. l: K$ _( s9 A6 l - }( V* q0 s+ T. a& V3 n
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