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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)
! J4 y+ K5 E( p- L& F- #include <ESP8266HTTPClient.h>0 b" ~) ?9 T! x0 V. m! w3 X6 J: B
- #include <ESP8266WiFi.h>
1 L/ W" D3 a8 m. o5 j - #include <ESP8266WiFiMulti.h>
! D" z8 {5 F. v( B' I! z - #include <ESP8266WebServer.h>
9 N i9 D) x" W: n- L8 u% c: P - #include <arduino.h>
0 ~, C) V5 K2 |( w3 _4 u W9 l - ESP8266WiFiMulti WiFiMulti;: `: e$ h1 U" _& h) x% I
- ESP8266WebServer server(80);
5 Q( U d& f- M+ ` - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";1 n0 ^, z& j* a: q- \
- ADC_MODE(ADC_VCC);
1 V. s8 r* Q) _$ Y0 v - void setup() {. L5 o4 |, y0 o( {
- Serial.begin(115200);
1 {/ X @* o) O! t+ k - Serial.print("\r\n\n");
, q8 x, t' m6 Y - pinMode(2,OUTPUT);6 q" R# x9 @1 m8 R3 L$ m0 y, }
- // WIFI
) t) q% u% d% ?. r' M& B - WiFi.mode(WIFI_STA);: s0 m* z; y6 e6 t$ V
- WiFi.hostname("Sparkle");
- S' y5 N! ~7 U) \3 } - WiFiMulti.addAP("wifi ssid", "wifi password");
" }. |/ W* t) G4 V8 D - int tryNum = 15;8 B; Y; J" W) P( K/ Z$ A
- Serial.print("Connect WiFi");
: X: ^7 v6 I+ b2 }- E9 a$ G - while (WiFiMulti.run() != WL_CONNECTED) {
* p: R; d0 i; O - digitalWrite(2,0);; X: q5 g* |8 v% n4 y+ b) \
- delay(200);- Q( S7 b0 L# r8 w- X
- digitalWrite(2,1);. J4 n5 O% Z! e0 E! Y- d1 F. `
- delay(300);
3 q' u# N9 f& G8 T1 M0 w - Serial.print(".");3 x7 a( E, ]' Z
- tryNum--;) c. ]/ A% @7 Q
- if (tryNum == 0) {& `0 F: J# c& c/ y
- // 1min
2 i' R; b( V* C7 f6 V# Q - // ESP.deepSleep(60e6);
! K* ` n% c% F Q1 o P; M- | - ESP.deepSleep(0);
3 a% q- H0 J' O) I4 F; n( r1 S9 V - }- |& V/ Q$ q/ b8 w9 C, M; T0 B
- }8 o I1 X, Y2 ?
- Serial.print("\r\n");3 P A F8 H7 ?: W
- digitalWrite(2,1);
# b& G4 z& S2 u( s, @ - Serial.print("IP address : ");
* A* {5 }+ M( g' O5 o$ l. v - Serial.println(WiFi.localIP());( R% V1 ]6 x7 P7 R
- server.on("/", HTTP_GET, [](){
) q, e3 l2 h" T - server.sendHeader("Connection", "close");
8 ?0 _# e" ?5 o% t& z. } - server.send(200, "text/html", serverIndex);/ e( p' V0 r/ N! U5 J3 k' e! E+ O
- });. g2 A7 B7 \6 D. t4 d: R
- server.on("/update", HTTP_POST, [](){4 F) \3 d" _# H* Y2 l
- server.sendHeader("Connection", "close");* u; F3 X* y w) O- H6 J1 |
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
& d! x% \2 f( M) \* }8 E - ESP.restart();
3 f8 m( X3 P8 s( V - },[](){
9 z. R1 U: n3 s/ n - HTTPUpload& upload = server.upload();' b$ m5 c+ [% J1 M% y( [, z \
- if(upload.status == UPLOAD_FILE_START){# F) ]; F+ g$ R9 A6 G
- Serial.setDebugOutput(true);
& w" k: {/ Q' O: o/ O; q; @ - Serial.printf("Update: %s\n", upload.filename.c_str());. ^. X5 }& V( X
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;8 x" t) o4 k, l5 h
- if(!Update.begin(maxSketchSpace)){+ i2 s0 ~7 d6 L4 O; M
- Update.printError(Serial);- Q4 n; _- L& d' B# f- i; v
- }
6 U5 S1 r$ u& \3 r S - } else if(upload.status == UPLOAD_FILE_WRITE){( ^# w& G- @" }& k1 v6 q* _* K; N: U
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){1 k2 D/ f# q' u+ W* {) e- W
- Update.printError(Serial);
3 f4 U$ t: @1 M- O3 e, A3 s - }
" S0 L+ A/ F4 P5 j" H4 c9 \ - } else if(upload.status == UPLOAD_FILE_END){2 W' T1 V0 O) f: ]& j
- if(Update.end(true)){
( X, ]: \- R8 j$ `) M1 ], w - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
1 t$ h) [% a; } - } else {
9 A/ U# P+ k! e- c - Update.printError(Serial);
2 \! h0 D" | a% D, R! b/ h+ g - }% ~( J8 K4 [& s. l
- Serial.setDebugOutput(false);- s8 g& j2 f! b# r
- }0 `! X# }) Z) V
- yield();
4 t# b( {" w L" b7 R: ^ - });
/ ]$ j8 O5 \ u4 x5 ^0 _: X3 W -
8 @$ q0 U1 z2 e; X5 w. r: I( C - digitalWrite(2,0);5 a' v* @) i) L( ?8 C7 z: v
- mainAction();
0 y9 H' I0 [! m6 p( v; D! t - if (digitalRead(0)){2 a) d1 B M0 B2 i, c3 L% Y
- ESP.deepSleep(0);
V. x+ ^& h9 n' W! w - } else {- g2 { m8 i" X) \
- server.begin();
+ X& r2 g- d' {1 t9 u - }9 G. _0 ^6 P7 m
- }7 K7 D' X# k8 v+ H
- void loop() {: g% P+ o6 f+ J3 a! |
- server.handleClient();
8 u) m! v" U7 L - delay(1);
* q8 K, r" @" m" s6 w8 \1 r - }+ j" h$ g P5 W/ P7 T- ?/ H0 f# s, k
- String doGet(String url){$ d+ D4 F* w' }2 i
- if ((WiFiMulti.run() == WL_CONNECTED)) { d0 \" a6 l+ p$ T
- HTTPClient http;
, g8 R( L/ P4 w# B: S - Serial.println("[HTTP] begin...");
9 n' I4 M! c; K) [( g8 F" M - if (url.startsWith("https")) {3 t' M! _; l5 [1 g9 j
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");( |' T2 g6 I6 ^3 j4 K
- } else {
H* A4 ^& p, [4 ?7 \ - http.begin(url);
' K2 s8 j/ I6 n/ n - }' l4 q8 s" i+ ?- t1 h' h
- Serial.println("[HTTP] GET...");
4 I, C8 h# d5 q" [' q, C, |: k - int httpCode = http.GET();+ O& Y& K" O6 ]/ u3 K
- if (httpCode > 0) {
. E: W* [7 Z {0 S# @- { b - Serial.printf("[HTTP] code: %d\n", httpCode);
/ y& K. p4 j9 _' E - if (httpCode == HTTP_CODE_OK) {
5 [1 k9 u- ~9 \ L# G2 q - String payload = http.getString();
- L8 O7 Q" p- _* P$ j. u8 Y - Serial.println(payload);: j/ }9 ]: I, a+ ?2 _1 d
- Serial.print("\r\n");
) Y. ]4 {( E- c0 ?( x) b - return payload;
' {2 C3 O8 A# x0 n3 ] - }
$ O! O' P+ P0 t# l7 U$ D - } else {
1 f; J7 I+ n' C9 F - Serial.printf("[HTTP] GET... failed, error: %s\n",
|+ V" g9 M* s1 B2 \ - http.errorToString(httpCode).c_str());: x7 K3 ~1 F- @, b N6 I
- }
# ~ }0 H8 t8 q% V - http.end();
v. H2 V! ~* R8 k) n3 H4 T - return "";
, ^3 C; X* r% {8 x- j4 K7 R$ C - }. q$ ~8 P4 c7 k/ L3 P
- }
2 D- `5 t4 I. A; n. U% a - void mainAction() {7 @9 W" p; }1 V" F3 {% M
- // 发送请求2 x2 f! ]0 I; a9 j: ^8 |
- doGet("http://google.cn");
8 m0 B! ]+ p! Q8 p% ~' w) a - }
1 J& I( K0 w; N7 _
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