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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)
5 ] v% d0 Y" B# k- #include <ESP8266HTTPClient.h>* L {" o4 m% A' M# x
- #include <ESP8266WiFi.h>5 A; N, ?" q! B+ I4 c' ?; |! ^8 ^
- #include <ESP8266WiFiMulti.h>
9 D/ H, O+ _% \7 k* e - #include <ESP8266WebServer.h># _* H0 {( r" s0 I6 w: c5 F
- #include <arduino.h>
4 s8 a' s6 y, y$ V6 o5 r - ESP8266WiFiMulti WiFiMulti;3 ]3 D3 k( I1 C1 F
- ESP8266WebServer server(80);
* ?& K5 T# x3 v+ L - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
4 Y9 G9 f3 _2 ^! r/ s - ADC_MODE(ADC_VCC);( ~3 d$ j) x. N/ b4 q4 n% b9 J
- void setup() {
/ \! u( b( I8 Q/ I5 i - Serial.begin(115200);( M; A8 T0 T6 c
- Serial.print("\r\n\n");( [- A) g! n9 u
- pinMode(2,OUTPUT);9 o: _& V8 E9 A+ ^
- // WIFI$ _& g$ x; N8 j3 K
- WiFi.mode(WIFI_STA);1 I. S) B" J/ Y
- WiFi.hostname("Sparkle");2 |2 n/ }0 U) g7 a2 n2 m. d& H
- WiFiMulti.addAP("wifi ssid", "wifi password");. ?7 [) l4 o5 K( d1 [3 ~- t
- int tryNum = 15;
, r5 J. Z- Y' h T - Serial.print("Connect WiFi");% ?3 I1 b2 w& a2 _% R- r' o
- while (WiFiMulti.run() != WL_CONNECTED) {4 Q4 U- x! W h
- digitalWrite(2,0);* V: d/ r" l! }" }! ^) M: d( |
- delay(200);
E+ t7 [$ x8 W5 K1 x - digitalWrite(2,1);/ S- @" ?' e! i8 u p
- delay(300);
; |* M ]4 w+ W5 G( ]5 E. t - Serial.print(".");/ _7 A8 A2 B% o5 {8 }
- tryNum--;' F2 Z# N( Z) c& U6 b& s$ v' i: h& _
- if (tryNum == 0) {
& o+ b5 l) J) O$ W - // 1min
7 ^" R. i: }1 X) u6 x4 H# Y) a - // ESP.deepSleep(60e6);6 e' {8 q! f7 O& G! l" o2 U
- ESP.deepSleep(0);4 P4 P; v9 D- u- ?: ~3 M/ k+ p
- } t0 s; i7 K/ Y6 |9 t
- }$ j9 b$ h. [9 {9 i( o( X. F
- Serial.print("\r\n");
) R! r$ j/ r' w9 s i - digitalWrite(2,1);# @, V* e' g( P* l% q# b0 y. J
- Serial.print("IP address : ");
1 a' q. k0 Z8 f - Serial.println(WiFi.localIP());
% k. M9 ~1 {0 x. [3 \2 E$ Y0 g - server.on("/", HTTP_GET, [](){: \7 O# q- [9 z
- server.sendHeader("Connection", "close");
; }/ |4 E, m' h9 @ [ - server.send(200, "text/html", serverIndex);. X1 D8 {+ w# ^ D
- });
/ i! o; a S( ?% p - server.on("/update", HTTP_POST, [](){, b2 t& ^1 E) K/ @ _- ^
- server.sendHeader("Connection", "close");- s: M4 L: z% B& u' e9 J5 z" S) u
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
$ n1 q2 V" c* B6 b+ K( g+ g - ESP.restart();+ {' A. z. k @) P+ C" {/ X
- },[](){
$ R+ j: r& w3 N4 N% }/ |! d - HTTPUpload& upload = server.upload();
: P1 O2 ^6 v; C - if(upload.status == UPLOAD_FILE_START){5 @0 i& I0 |3 V( |" v3 k0 y- b
- Serial.setDebugOutput(true);
+ [3 Z# I+ o/ A$ r - Serial.printf("Update: %s\n", upload.filename.c_str());
2 p6 Y" L8 X2 {8 I6 \ - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;: ]( [4 ]* U& F9 ?( [4 s
- if(!Update.begin(maxSketchSpace)){3 C0 I; Z+ y+ b+ M8 o
- Update.printError(Serial);
: Z0 L: S- @- y0 K/ g( X- U% H - }3 a* C e- f. e5 F5 |& j! O6 X4 q
- } else if(upload.status == UPLOAD_FILE_WRITE){
% u& w3 z5 }# r: C% g - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){" S$ v! k d8 Q2 n( Z
- Update.printError(Serial);
# g/ b2 e: h: N; w8 F! m; {# ?4 b - }
; I) H" }9 `+ ~/ ]% ? - } else if(upload.status == UPLOAD_FILE_END){/ T D; \( n* E/ }9 c# p; I
- if(Update.end(true)){
; P+ a# j7 J, x - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);5 I, U2 M; B) a& h; x) Y. m. n
- } else {
1 t2 B0 S+ J M2 d. ~ {. V - Update.printError(Serial);( l: C4 {# s E4 {; ?! U8 A8 N y: ]
- }* X* ]' w5 n% ?- d, y
- Serial.setDebugOutput(false);
8 |# m" W m- s% P2 ~' J; ` - }# D s! r, ?1 L+ w( R U
- yield();
9 f5 s$ E3 R+ V. s6 ^6 Q - });
: B4 n N+ L6 _, _8 N - 5 G0 h1 @! r; N" C+ {9 \
- digitalWrite(2,0);/ L1 @6 _! W: l$ p9 M$ J
- mainAction();1 i4 b, u8 G* x/ J1 c/ c! W" V
- if (digitalRead(0)){4 A6 X: {4 W( F6 F2 v3 i+ w. `5 E
- ESP.deepSleep(0);
, W: x: _. Y3 d l. ? - } else {
0 R; P+ U+ t: v" Y% q! T, D8 ] - server.begin();4 Q# v0 b! v9 `, B7 V
- }
$ n1 `$ p% o0 F& n, D4 y9 n5 J; A' ~ - }
5 ^4 i& G( q7 @ - void loop() {; T! r- d/ t: s. L, L- U8 o
- server.handleClient();
X+ f9 D+ g& O( u% t( N - delay(1);
+ @5 I5 X4 _5 T! X8 Y& k' b2 N2 m - }1 A6 |" K) u9 ?/ X
- String doGet(String url){
$ ^) m; z3 M1 F9 n8 ^$ | - if ((WiFiMulti.run() == WL_CONNECTED)) {
2 s$ z" B# z! u - HTTPClient http;
, B4 D, z9 t* J3 F - Serial.println("[HTTP] begin...");
$ S1 u) j1 f$ a - if (url.startsWith("https")) {
' A5 r( ]+ T K5 f - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
/ P! _: F/ }, j$ C& p* m- H ] - } else {! X$ V- h/ U% c7 {5 U
- http.begin(url);
" Z1 h$ y. Z% X. }0 r! i) f: a% l - }
$ ~2 ]; e% F8 M1 ^ - Serial.println("[HTTP] GET...");% ~3 L( S* ?7 z5 g9 C: f
- int httpCode = http.GET();
9 z8 |) K5 J* `! w* G+ p - if (httpCode > 0) {. D6 C2 \# r6 k- d; ^: B
- Serial.printf("[HTTP] code: %d\n", httpCode);
8 T- }( ~- g7 ~7 B0 @ - if (httpCode == HTTP_CODE_OK) {, I; g: o& V4 h
- String payload = http.getString();# N5 H! |6 [( c" T
- Serial.println(payload);
5 @* J4 [6 `( z/ O5 \9 } - Serial.print("\r\n");; t2 @7 ^- M4 U: V/ k
- return payload;
. q% |: e* R- d" q/ V - }
- R9 k, w q1 |$ M2 n" ]4 g l - } else {
+ Y S, z; k' Q- V. Y - Serial.printf("[HTTP] GET... failed, error: %s\n",
1 h+ q5 y- ~/ u+ Z - http.errorToString(httpCode).c_str());
0 ?7 V$ C' d0 H! I/ f% c - }3 ~5 X' Y b5 ~- Q5 v1 [' z0 D( k: m
- http.end();
! K3 i+ {, c9 V" j; Z7 f" R+ T - return "";
. P5 k0 h4 w, S; {, k; [0 j - }
; J& B& H4 T( t) B7 z$ n) r6 U - }
7 M! p5 r" P3 X! o - void mainAction() {% t+ `' z6 u/ q& I* w
- // 发送请求" D- l4 W6 u. f# X" [) t4 [ B$ w7 d
- doGet("http://google.cn");5 [. M5 R% J ?% {. Y# y* r7 A" \
- }
5 P% G2 a- ?; J x/ U
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