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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)
& T- H3 d& {7 B H- #include <ESP8266HTTPClient.h>. I2 n6 X f h: x: A. v
- #include <ESP8266WiFi.h>
" |% h* Y& W0 Y. _) x - #include <ESP8266WiFiMulti.h>- w3 {! I; e: p. o8 I
- #include <ESP8266WebServer.h>
# w! q7 }6 q( a* ] - #include <arduino.h>
: i+ t& `3 q9 n0 ] - ESP8266WiFiMulti WiFiMulti;' w5 z9 z- g( C% M5 \, l, o) F
- ESP8266WebServer server(80);" O; L1 p5 ^) u9 P1 U; K
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";, `: l& d+ v. j0 F6 G
- ADC_MODE(ADC_VCC);1 _$ ]6 s: R6 @* U8 b8 r) Y
- void setup() {
6 r2 n; M& p J4 D" E - Serial.begin(115200);
/ F$ ?( C0 d( S3 J) W: m - Serial.print("\r\n\n");& Q1 s# p: J$ ^$ e* |6 V2 T3 [
- pinMode(2,OUTPUT);- s* W! M- H7 K/ d. ^
- // WIFI% |8 ^" V: c2 j9 p- ]
- WiFi.mode(WIFI_STA);. D5 |" V) z8 W, z! w) X
- WiFi.hostname("Sparkle");& H$ h5 ~& f; b$ C# \ N) i: P
- WiFiMulti.addAP("wifi ssid", "wifi password");
* P& z% t' K* B! V# k) `* z$ f - int tryNum = 15;0 R, {9 l" C" M. r
- Serial.print("Connect WiFi");' f7 U! {) z% ?5 t" S/ }
- while (WiFiMulti.run() != WL_CONNECTED) {6 U! N) y8 {; I8 u* v" h
- digitalWrite(2,0);6 p' X* z+ p# q, w1 z
- delay(200);7 s8 X9 K5 M, ~1 \
- digitalWrite(2,1);5 [, k% ]: I3 D6 f. C+ Y
- delay(300);! g$ [( X% ]4 z! n
- Serial.print(".");9 E% Z$ f5 B3 |1 U4 P9 C! ^; s }1 n
- tryNum--;
$ D ~$ r# U1 R2 [ - if (tryNum == 0) {* c' G: Z6 F8 X
- // 1min
* z9 R: L4 l) X$ \ D - // ESP.deepSleep(60e6);
; q) f/ |% m4 x - ESP.deepSleep(0);
; ?) `8 @; l. u2 N% s) Q+ o% S6 j - }+ ]/ s6 g$ D" d: E4 q6 |
- }
0 M3 P+ R' _- M: s/ l# J$ C( V8 h - Serial.print("\r\n");
; m% a6 d0 T- c% _; v E& C0 q7 p - digitalWrite(2,1);
% n ?7 o" o7 I3 Q1 O" e - Serial.print("IP address : ");
* s4 ~6 Y- v' D' s; H - Serial.println(WiFi.localIP());
H7 }" R {8 I. ^1 q7 l& L6 C. a9 q - server.on("/", HTTP_GET, [](){
8 A ]# A2 }( ^" C - server.sendHeader("Connection", "close");9 {, s) s/ m! b# g
- server.send(200, "text/html", serverIndex);
; |+ O8 d$ E- Q, `. U - });
! M8 c9 Y' D8 W9 Z$ c - server.on("/update", HTTP_POST, [](){0 {4 O# X! x/ I1 l" `
- server.sendHeader("Connection", "close");
8 J6 J; n2 v/ O7 |8 R$ \ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");# p; `, k+ u1 }# w
- ESP.restart();1 U5 [" i' I" d7 |9 {- Z$ J# v
- },[](){
! O9 {- t9 _, ^% r - HTTPUpload& upload = server.upload();
) [9 x- @: D* e: L; B# u - if(upload.status == UPLOAD_FILE_START){( e: L; n8 Y) A0 ^2 Z, j$ s. u0 Y
- Serial.setDebugOutput(true);2 h8 i7 q1 |- i" { M6 s
- Serial.printf("Update: %s\n", upload.filename.c_str());/ P* D8 c/ w2 L: G
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
6 c: A8 O+ w/ F. _ - if(!Update.begin(maxSketchSpace)){
3 O8 k8 d4 G* S% W4 q - Update.printError(Serial);$ L6 a: u% W8 ~- m4 e6 `+ g
- }. A8 X: e/ A) m% L- B( W9 }( K* q
- } else if(upload.status == UPLOAD_FILE_WRITE){
* l7 M& K7 \# @0 E - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
% {% e8 ~0 r# b) L3 w0 K: n4 m# u - Update.printError(Serial);
! o/ g( M7 K* w - }, v2 a( \+ B5 y' X) G/ _& |
- } else if(upload.status == UPLOAD_FILE_END){0 P7 w* x* e" H1 p3 E+ v. {' d' ?
- if(Update.end(true)){' Y+ q/ W0 A6 A3 K
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);7 U" `# @- `$ r7 L: c. K$ r, ]
- } else {; F; v/ @1 d8 N8 e5 T( j0 q1 R' G; r
- Update.printError(Serial);
8 q( a! I/ j; C - }
- _6 }' m# y7 O/ Y# \1 F - Serial.setDebugOutput(false);1 E: g$ G" Q0 W1 y) a& w0 A& t1 |6 z5 l
- }
4 d! P0 O8 d' f" } - yield();" h) S e( ~( _; M5 C$ v
- });
) x3 Q% V J8 W; T0 \7 Q -
~7 f4 ^+ y7 N1 G5 Q - digitalWrite(2,0);
$ s0 [- c3 w2 o* i( ~4 { ~ - mainAction();
+ Y0 t8 P# v3 Z2 Y - if (digitalRead(0)){# a3 l* G) C$ D
- ESP.deepSleep(0);
/ e; e: n+ J% `' @4 V! ? - } else {; o9 h. ^5 C! q
- server.begin();
( J" [- [! f( t! k) ? - }
4 C8 h G- R5 z& a$ n - }! g8 D# z7 q6 g! O
- void loop() {
- t3 V& S- J; ^0 R0 e' L - server.handleClient();% `5 Q( y* W0 ^1 @1 ]
- delay(1);- ]) C# } L; P$ W6 z
- }
% l1 Q3 q" p7 R1 A. A1 _ - String doGet(String url){
+ r' O7 [) u, W9 k8 t: Q5 R - if ((WiFiMulti.run() == WL_CONNECTED)) {
& L7 z S: ?% l7 e; u2 E8 c - HTTPClient http;6 y" a5 M+ b. m& `3 x) b# d7 A
- Serial.println("[HTTP] begin...");
# B: r E4 y0 N" T" x - if (url.startsWith("https")) {2 |7 F g0 c0 n7 D3 e* [
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");" k9 W0 I# H( P
- } else {' V& \0 o9 P1 |' F2 \0 f
- http.begin(url);
( ]8 P% f! q P+ g4 ]; v - }) ]; | V) ?; n. e9 R4 b
- Serial.println("[HTTP] GET...");! A/ I4 Y. F' [/ v
- int httpCode = http.GET();3 X- b3 ?$ |& Z% L3 h1 D4 M
- if (httpCode > 0) {
) _2 [# M3 C ^6 s! l: w) q - Serial.printf("[HTTP] code: %d\n", httpCode);7 W6 E# _: ]% S* k! Y$ |
- if (httpCode == HTTP_CODE_OK) {
/ c* o6 L! k: [0 P - String payload = http.getString();# v) [+ ~0 Y4 X& c" F% g0 S# l
- Serial.println(payload);
) D9 t) u' G- h% s - Serial.print("\r\n");
j& a6 s: P3 N( N/ N! v: K - return payload;4 M- I+ Y5 j: @7 B
- }; m1 M; J2 i' W
- } else {
) f% W. Z* a3 v$ [ - Serial.printf("[HTTP] GET... failed, error: %s\n",
' u3 m: Z4 R1 \ - http.errorToString(httpCode).c_str());
- _- k& k7 U4 W4 G5 P. _8 a1 I) s# N2 U - }8 v0 s3 z1 g7 a, y$ O# f! K" y/ }* N
- http.end();3 V( a* a3 S9 b' q" z; g# y
- return "";
7 b4 b. O) d* B! _) B - }
# ?- H5 E' w- y' ~& `5 b, y, f - }% T) _8 Z8 _3 q" k
- void mainAction() { A6 W% O' \9 L
- // 发送请求
- x. x. N S! ^* I. Z - doGet("http://google.cn");6 W/ D1 b3 j$ y6 Y! c
- }
/ y' A7 w2 Z- e/ l( b
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