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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)
' Q& m- l; W! j5 @: s( x- #include <ESP8266HTTPClient.h>% G" F9 V z2 Y- Z+ x* b( X8 A
- #include <ESP8266WiFi.h>
$ Q7 s# p$ h& @# r) z" [ - #include <ESP8266WiFiMulti.h>" r4 d) _4 d9 w
- #include <ESP8266WebServer.h>9 Z$ z8 T0 A) m0 n t
- #include <arduino.h>
+ N1 ^. {+ d' d* B( u% ` - ESP8266WiFiMulti WiFiMulti;
9 X: r$ m% I% ~, l6 q A* B - ESP8266WebServer server(80);
! z4 j) H/ a/ l3 f' X0 P0 K/ s9 q; V4 B" k0 m - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
, m5 s6 W8 Y' C/ |- ^ - ADC_MODE(ADC_VCC);+ X0 b; t. U& ]9 p0 B
- void setup() {. S; ~+ A, v' G2 j8 l. g
- Serial.begin(115200);: [) t8 Z! V% H( [
- Serial.print("\r\n\n");+ A% W+ @1 u q+ h7 F% g' K
- pinMode(2,OUTPUT);
1 v" T& x3 ^. L1 y' y2 z - // WIFI
5 U$ `; \9 m7 D! [! @0 s0 W - WiFi.mode(WIFI_STA);! P- X) M* U4 d% o6 l8 }5 E
- WiFi.hostname("Sparkle");* k d' a* j) }
- WiFiMulti.addAP("wifi ssid", "wifi password");6 k* S8 |! k% {6 v, i' |5 D& L
- int tryNum = 15; ~; @ Y% |4 M0 w8 k( V
- Serial.print("Connect WiFi");
( y# l7 R1 \, k! {! R$ g4 b - while (WiFiMulti.run() != WL_CONNECTED) {+ P# d/ l( F$ t. C% m8 E
- digitalWrite(2,0);1 L# p2 Q1 p7 c( I
- delay(200);
: _2 K4 z2 U! F1 W - digitalWrite(2,1);- G& t( R! s! F
- delay(300);
. f e( z4 e* e - Serial.print(".");
: N% D I5 ?8 q$ A - tryNum--;2 ?' T: D- C4 ^% a2 w6 d4 X
- if (tryNum == 0) {8 ^$ R9 {1 P8 ?6 ~( l. t
- // 1min0 o* p" f$ w9 Z! j6 f
- // ESP.deepSleep(60e6);
- c) V ]: v; r - ESP.deepSleep(0);2 @! m5 o$ [) ], M! S$ D3 \
- }1 R+ j3 d; C4 B! \9 D
- }4 ?9 q& V) @7 M
- Serial.print("\r\n");
3 ~& b8 U ]0 J% w) H/ N# j - digitalWrite(2,1);& l0 `# r% c! i/ ~; ~4 h# {/ B
- Serial.print("IP address : ");
+ j) i# Z( ]5 {* D# w/ R/ J7 p0 n2 d - Serial.println(WiFi.localIP());
2 X6 u% M; d. k& ]# W - server.on("/", HTTP_GET, [](){
$ f% x% l) j+ _ - server.sendHeader("Connection", "close");
! n- E6 c6 t) L - server.send(200, "text/html", serverIndex);7 e0 e* V3 O2 G+ G
- });! `. u4 \: ~) ]
- server.on("/update", HTTP_POST, [](){' l7 Y& ]/ H7 H1 d" U( p
- server.sendHeader("Connection", "close");
; E4 v3 G. B4 V# \! {6 H - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");7 G' Y8 d5 n- t* g, J$ n% D/ ^" u
- ESP.restart();" k3 F# U% A% n" A8 O
- },[](){
7 C9 S4 f7 V" ` P3 ]3 D L2 [ - HTTPUpload& upload = server.upload();0 q5 K) S) ]2 h' Z
- if(upload.status == UPLOAD_FILE_START){! S7 U5 i" Z' w" m* Q
- Serial.setDebugOutput(true);
3 V+ M" b1 E8 `, x4 F - Serial.printf("Update: %s\n", upload.filename.c_str());
+ u$ H. N) H/ o( V; b3 |! Y - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 o8 K& H7 N {9 }
- if(!Update.begin(maxSketchSpace)){% r$ h3 C8 v$ m9 Z3 Y
- Update.printError(Serial);; }4 b0 c! Q5 Q( g
- }
3 }; U7 l0 z/ q% i - } else if(upload.status == UPLOAD_FILE_WRITE){3 p( ]5 U1 y! e9 c: L( G$ e5 G
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){& ?$ |3 z" L, x+ E6 }. O
- Update.printError(Serial);
0 B) P+ G8 ^2 `7 V5 ]7 C' e% p - }
0 D7 C. k. `# n' E- x - } else if(upload.status == UPLOAD_FILE_END){
" R& R) Y+ d, o* I- G1 Z: r% Q - if(Update.end(true)){+ ^& |9 E/ @6 Y# r$ ]2 _; W
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);: R, E+ i1 W) c
- } else {
+ C* t4 P5 A' ]+ r - Update.printError(Serial);, D3 I1 d( W: g) [
- }
8 l! z' [" X. r - Serial.setDebugOutput(false);7 M, w4 r% N [& ?- q
- }
; V2 o# W' f! ~( P - yield();4 n% g2 V- s; N8 z0 }9 t
- });: U+ z& ]+ Q# e3 u4 Y- c& T4 `# a6 L
- ' ?% [6 f9 z0 ^8 k
- digitalWrite(2,0);! K n9 i. t0 q+ Y$ y: ?
- mainAction();
2 L' A3 b% E# j; k& d - if (digitalRead(0)){: L+ `1 J& y% S- X
- ESP.deepSleep(0);8 r% v Y/ F- w; i% q3 g
- } else {
4 w0 O3 W" p5 ^2 d. G' Z2 ? - server.begin();9 ~0 I" E {# u* v u" I
- }
& n) p" k2 N i/ v - }9 P/ J5 r9 g' ^* m5 K' ~
- void loop() {
; L) K+ L$ b, W6 v$ @7 a6 ^: I - server.handleClient();" @2 \/ m* i4 w" i! |
- delay(1);0 l( @; Y/ w) G$ E/ R! F
- }
6 `! v7 b5 K l4 p3 X7 ^ - String doGet(String url){
u2 C6 W3 N2 ~: s( ]& i* B, _ - if ((WiFiMulti.run() == WL_CONNECTED)) {
! G& W& s+ y+ @6 L+ g6 g4 G - HTTPClient http;
2 q) _% ^- B" h# L( ?5 K% F, o - Serial.println("[HTTP] begin...");$ d& ~* k" ^! c, e. b. ?
- if (url.startsWith("https")) {# K: r" m9 D3 S0 A2 s! ?
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
" s# M" P) V$ u- X - } else {
* t+ f# p" ^3 t. w% I( v+ K - http.begin(url);
9 y% _! c5 m7 n6 t: ~* D0 | - }: B. H! V: i& M' j. U
- Serial.println("[HTTP] GET...");
9 b7 M: p5 Y+ W* R+ \: T" g# O - int httpCode = http.GET();
& }) R8 L# `# ?8 [+ L* s$ M, T - if (httpCode > 0) {
5 p% T$ x# V3 |1 f$ \ O - Serial.printf("[HTTP] code: %d\n", httpCode);
' d. e' q$ J# F, b: L: D - if (httpCode == HTTP_CODE_OK) {" ]2 Q. R* O% U- n9 Z
- String payload = http.getString();
3 E: s# _! n# M/ C1 A5 a - Serial.println(payload);
' S# w3 u2 R% z8 y J1 e9 L" g - Serial.print("\r\n");; S) G3 l$ {" h Z' ~
- return payload;
/ s, v5 q0 W/ x* ?- A9 J - }: y5 R' W0 `( I$ t
- } else {) g9 y& x3 o- ^/ w) V3 d* p& G+ ?
- Serial.printf("[HTTP] GET... failed, error: %s\n",
4 H0 y- s$ H% V6 g, h3 o - http.errorToString(httpCode).c_str());8 t% H- n. |# h) @
- }( Z4 B. N0 Q0 m
- http.end();- }3 ^" |" K. Z
- return "";2 h% Z3 _* I5 k) E1 ^8 X8 r- ^
- }- {4 \6 y+ N& S
- }
: P2 W) B& E2 _; y2 q6 f% L$ K - void mainAction() {. O0 @" g; ?" D/ {: ^
- // 发送请求8 ?) k8 ?# v* K8 Z+ e- w
- doGet("http://google.cn");
! a( ^- E: M1 q3 P - }
! Q4 k( |3 Q+ d5 U7 L
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