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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)
) M; {' U% i/ E$ Q- #include <ESP8266HTTPClient.h>( X1 @- E) V& B% Z9 X) Y& i
- #include <ESP8266WiFi.h>
3 Z/ I, p( i, U4 M% q5 H# d e, t0 f - #include <ESP8266WiFiMulti.h> ^1 q d6 {/ R# T8 T
- #include <ESP8266WebServer.h>& c$ _9 w4 J; u
- #include <arduino.h>8 K' B! Z, h: h" o7 x" I u
- ESP8266WiFiMulti WiFiMulti;9 z( ?0 D6 K, p E7 o& c2 i O
- ESP8266WebServer server(80);! X3 w! T8 r7 t# u$ @
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";6 T( W8 ^: h6 {" K1 ]2 A/ u; D
- ADC_MODE(ADC_VCC);- ]% M! Y& I. C5 z( c) c" t
- void setup() {# i5 Q' \1 ^7 `7 I7 P
- Serial.begin(115200);
' }. j: l2 F. H - Serial.print("\r\n\n");0 q4 y9 d1 o4 d) @( |6 `+ z& P
- pinMode(2,OUTPUT);
% U+ _( ~5 L) U9 s# q1 u4 J! ^# B9 ] - // WIFI
0 q' e8 k+ q* D9 Y2 ~7 O5 R+ f - WiFi.mode(WIFI_STA);+ ^4 m: U: D/ Z: M
- WiFi.hostname("Sparkle");# |" n1 A" l0 {" ~0 B
- WiFiMulti.addAP("wifi ssid", "wifi password");
% f( @' o* v+ y) d4 R: W5 \+ M+ { - int tryNum = 15;: ]" a- j; Z; e- |6 R! [# q: ?$ F
- Serial.print("Connect WiFi"); p, g5 m4 v& r+ M7 |' o
- while (WiFiMulti.run() != WL_CONNECTED) {
" E) t9 h: g# H - digitalWrite(2,0);$ \6 D/ G2 B% q8 J7 u: D
- delay(200);' V% O! T f- e/ M
- digitalWrite(2,1);
( m- f9 q/ z! v- Y - delay(300);, j( d2 Q- A6 r( ?* X7 I
- Serial.print(".");. ^1 T6 o9 t. N% r) L% g a
- tryNum--;
6 _$ K, D0 z: x( p% X. w- C. G - if (tryNum == 0) {
+ W9 z4 \: G+ | v" C, [1 X, C - // 1min
( Z9 E7 r/ X0 R G9 a$ N8 u { - // ESP.deepSleep(60e6);0 g; Z f* N+ i# e8 T) r- e; C' H, d
- ESP.deepSleep(0);: x8 _. A6 G# |& |
- }# v' I- \# X& L I6 t* H
- }
+ }1 B* \% C" f7 K/ i! T - Serial.print("\r\n");
% a: F$ y8 e: r3 O' `- W% |7 v) ] - digitalWrite(2,1);# a& y8 |) L& w
- Serial.print("IP address : ");
3 Z i5 U4 Y. y, Y' {* M1 e - Serial.println(WiFi.localIP());/ z% p" L/ y, u6 w& e
- server.on("/", HTTP_GET, [](){$ V5 i: Y) @( F
- server.sendHeader("Connection", "close");
! S: I* b- [) ^" e; n. J: ~1 e - server.send(200, "text/html", serverIndex);2 Z$ s; h1 G* t' k& g- [. V
- });3 F# Z! K$ i5 l* m: X
- server.on("/update", HTTP_POST, [](){
O; E3 q3 \: E: K& q - server.sendHeader("Connection", "close");
4 y0 q7 J; u% F2 Y - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");4 o! O1 C1 ]! ]; r% i2 o
- ESP.restart(); c% o! k% q3 e- W; v$ b+ P
- },[](){) o+ u/ z% @2 Z2 A1 n) k2 D: ~
- HTTPUpload& upload = server.upload();3 V6 E: K8 T2 L# `, h$ C# ^
- if(upload.status == UPLOAD_FILE_START){- O2 L+ O8 W0 E3 L+ g5 d/ J
- Serial.setDebugOutput(true);: o9 r0 R/ t8 o; i
- Serial.printf("Update: %s\n", upload.filename.c_str());
# Z/ h7 c# m3 `7 | - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
; w: {( |% _8 \7 k - if(!Update.begin(maxSketchSpace)){" S; q7 a& ?3 K% k
- Update.printError(Serial);: W. \+ o/ x' d; T! {7 G
- }% t- c w6 v7 p/ C
- } else if(upload.status == UPLOAD_FILE_WRITE){
. q T. `6 X4 G - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){/ m# z4 a6 P! P. s# p9 m8 L
- Update.printError(Serial);
# n# @% ~- r% S2 I" d- V - }
7 e0 f: E! `& b; ]9 Q3 \ - } else if(upload.status == UPLOAD_FILE_END){
! C# B6 ~$ v! N9 K0 W - if(Update.end(true)){& B+ i- ~7 t+ v4 j4 N2 r- q, ^
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
4 s0 F4 S4 I6 D3 O. @6 b - } else {# O9 b& B: d8 O% r
- Update.printError(Serial);
w' y7 D8 o# ] - }
- R% Y$ K3 b0 S0 c+ | - Serial.setDebugOutput(false);
6 R6 h8 o; I7 H+ V9 S% N. ] - }8 v6 ^0 _ {5 T
- yield();
2 [6 W0 Z" A) d - });
- O, e5 t Q$ D7 A' P" E4 B H -
! A, P: \( a0 M3 m% b - digitalWrite(2,0);
% p+ _: l3 ~: f2 B, L9 D - mainAction();
M" s# S- c1 L. b) l - if (digitalRead(0)){2 T5 n# l& _9 F6 ?
- ESP.deepSleep(0);; O4 j& m) t. |
- } else {
1 T9 d# ~9 L( I) g. [/ \ - server.begin();" D. C4 s" e. A1 U) L0 G
- }
2 Z# O1 J$ P1 O. r1 t - }
' N' _6 r! t- p; e* c - void loop() {1 w8 M1 R% ?9 s! Q$ g- B
- server.handleClient();
% o0 Z# d C. m9 } - delay(1);
8 x8 l% b# f/ d' A - }
7 r: p h. B0 D5 R) a - String doGet(String url){+ ]6 ^$ P: t8 N- ? H
- if ((WiFiMulti.run() == WL_CONNECTED)) {6 e+ z1 N+ f& f* Y7 |: \& c U; @
- HTTPClient http;6 q2 T3 C5 d0 \9 i7 J& X
- Serial.println("[HTTP] begin...");' X# ^2 A4 Z5 U& k
- if (url.startsWith("https")) {& s. S, G; p3 i2 U5 j
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");" h) r1 ^7 t1 h7 g) K
- } else {
/ O: T/ q2 A) ~9 m/ a - http.begin(url);
3 o' o: X, ?$ o! l& v - }
0 E8 Z& f+ T% X - Serial.println("[HTTP] GET...");
9 |( x# m. D2 f! o - int httpCode = http.GET();9 n+ S: T* i4 L9 l/ q! H; Y+ Z4 a
- if (httpCode > 0) {4 S% u( X! A1 `$ e: Y
- Serial.printf("[HTTP] code: %d\n", httpCode);
) r6 E6 g N0 z+ ~ - if (httpCode == HTTP_CODE_OK) {" ?9 Z& w/ M/ S' o- E4 Q
- String payload = http.getString();, G3 W( j% I: N' ]6 t- d
- Serial.println(payload);0 ^& u# c9 D, ^$ a
- Serial.print("\r\n");+ B4 [9 m1 g, o# |9 `
- return payload;
/ W3 g5 z% I2 f0 A7 u+ [5 [ - }
: D& P1 m( b" l. q" y - } else {3 g$ c$ ?5 h+ q- v5 v
- Serial.printf("[HTTP] GET... failed, error: %s\n",7 ?( R- J3 [/ I$ H) K' J! {
- http.errorToString(httpCode).c_str());
$ ]* }3 _( Y6 Q+ L/ ^( r1 l - }) O( U5 ]0 h' G+ e7 G
- http.end();
# v N% X- O+ @; f - return "";
, G' G0 P2 K! z1 J. Q+ l - }
2 D4 g9 B: _/ Z" V7 {9 g. M - }
5 G( \$ k( S2 w: o c - void mainAction() {, B O6 {: Q( K
- // 发送请求3 V: Q! i. u5 l( _! |1 z
- doGet("http://google.cn");
2 m9 D/ ~0 v& v2 v! J, y; `! v0 E - } X' x0 x) t; [) t
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