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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)
, e6 F, [. z" S6 @- #include <ESP8266HTTPClient.h>% }1 e& n* P+ l4 }! D2 f
- #include <ESP8266WiFi.h>8 y. F; v. W1 e
- #include <ESP8266WiFiMulti.h>. K5 a% V* M1 l# Y3 h
- #include <ESP8266WebServer.h>
& v! _0 X9 K+ F+ b0 \ - #include <arduino.h>
w, `( c" }. U' [ - ESP8266WiFiMulti WiFiMulti;
- F" P, W8 w" m6 p6 q7 L - ESP8266WebServer server(80);- W9 t+ Z5 T1 ^
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";9 z" b0 f: ~: [) p. ~( B
- ADC_MODE(ADC_VCC);8 C1 Z, F. b( X( h1 l# ]4 C
- void setup() {
r# K( J, E: _" O - Serial.begin(115200);+ }* ]) k$ ~/ z+ g8 g- Y7 b
- Serial.print("\r\n\n");
2 M, O7 @- a7 s0 S- M4 g& B - pinMode(2,OUTPUT);( n; _- M" a+ `( \, q3 a1 P
- // WIFI/ a( ]9 C6 N+ s2 l$ r' A6 x' N+ e
- WiFi.mode(WIFI_STA);
5 ?" Y( Z" a1 r+ `8 `1 `' v - WiFi.hostname("Sparkle");( L. g* O0 t! ^6 V
- WiFiMulti.addAP("wifi ssid", "wifi password");% o# C* l7 ~" v" F5 A/ j
- int tryNum = 15;
& d/ \. T- j, _& o' ^0 B0 l - Serial.print("Connect WiFi");
( S& v/ ]6 y4 K- t- |" V - while (WiFiMulti.run() != WL_CONNECTED) {" K& V$ L$ k* m( u. R
- digitalWrite(2,0);
7 E! H! s" C$ F) _ - delay(200);2 S5 r: ?0 M2 P0 R, \, z
- digitalWrite(2,1);
/ S/ {4 c7 f& a$ w, P - delay(300);2 b& J+ r& ~% c- K6 q$ \
- Serial.print(".");
( P+ N' r; u& w - tryNum--;
9 b3 h |- u+ ] - if (tryNum == 0) {
% ~; I! \# J+ A9 t0 ~ - // 1min5 z& a# N; N) @
- // ESP.deepSleep(60e6);/ k; u. X0 ^. J7 |1 {, z, V
- ESP.deepSleep(0);
" Q* `# H! z$ o1 q2 k2 d" U - }
9 ?3 \6 i$ I% }8 Y! F. r - }4 L/ Y3 q& d6 J- j& o" V4 N
- Serial.print("\r\n");; \& |+ e* e6 P& V5 Q( }
- digitalWrite(2,1);0 H$ p$ T: K. M3 B
- Serial.print("IP address : ");
* N$ C8 A. y1 T$ d4 x8 R - Serial.println(WiFi.localIP());
1 S9 N1 }! T. [8 l - server.on("/", HTTP_GET, [](){; I. W4 u4 r' l7 w4 Z O# E2 g1 ?
- server.sendHeader("Connection", "close");
4 f3 G6 f% Q7 M- X0 \/ S* R - server.send(200, "text/html", serverIndex);# T) [* m! Y' A1 ^1 N& K e6 q, g
- });
2 W4 M \/ i. ?/ ?! A5 S5 _ - server.on("/update", HTTP_POST, [](){
# Z5 j2 y& W5 e8 p# G - server.sendHeader("Connection", "close");- w7 \; y* C% }( C6 S" G. \
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");. k( {$ g# s8 m$ m7 S; w$ @5 q
- ESP.restart();. @# k" R: ~0 r6 H M" M
- },[](){9 @: ^, P: S) F- c3 D, v
- HTTPUpload& upload = server.upload();
2 e, j, d, {1 L3 ] - if(upload.status == UPLOAD_FILE_START){
, ~3 f' c T( T4 t' D4 X - Serial.setDebugOutput(true);
" b8 g2 h( I; v- }1 n - Serial.printf("Update: %s\n", upload.filename.c_str());7 m) e5 M0 x5 D& ^
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
% c: m- u R) `0 O - if(!Update.begin(maxSketchSpace)){ `* x: `& t$ u. @3 P, j0 R
- Update.printError(Serial);7 B# y+ ?9 F/ O" ~, T8 a. K; M
- }# i7 D6 {" d; X0 R3 ]8 ?& [
- } else if(upload.status == UPLOAD_FILE_WRITE){5 j; I f r; ~/ J. W! o
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
, l$ T! g2 N x( _ - Update.printError(Serial);
: K; P; r( a' m! y - }3 |2 C% _1 j4 d1 E
- } else if(upload.status == UPLOAD_FILE_END){
2 k8 a, Q+ e) f - if(Update.end(true)){ n4 b7 l; p! P& R0 G3 G* R0 |
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
. D% |2 x) j& d! L0 w# F - } else {/ X2 H8 K; _/ K2 [6 g
- Update.printError(Serial);. w+ @. C2 V# `+ ]
- }% H8 T( g, [2 M0 Y- r a
- Serial.setDebugOutput(false);/ w! [4 H, a4 C6 a/ R1 R& a9 y
- }
# E% O% N* C. M, a0 Q8 H1 H - yield();
+ d/ X% ]' X5 @! p - });0 o' V% F" \+ O) m5 K" H
- 0 t$ y" S+ k+ s! u2 ^+ z* G
- digitalWrite(2,0);' s# {+ O) D+ b0 \* G
- mainAction();$ p+ O+ {7 W4 e
- if (digitalRead(0)){
& G8 Z' ]: h& l/ p% g - ESP.deepSleep(0);
4 s/ L! B! K- s2 e# R# h; p - } else {1 S3 I) N: b1 w h! { _4 v% b
- server.begin();4 v; {0 k9 j$ B, Z
- }5 j) r1 o( |# R: r( [4 O; G
- }
! A5 V# A# V. ^/ v, e - void loop() {- u/ h0 l& b: a8 D
- server.handleClient();
2 P `9 b+ C; G - delay(1);, \/ n2 a6 A& c/ u
- }
5 o9 |+ R: o6 v9 k7 | - String doGet(String url){
4 ^( o% x2 @; S/ E' b0 M - if ((WiFiMulti.run() == WL_CONNECTED)) {
! J; V2 J* V! [4 p( J0 z - HTTPClient http;
2 E8 f. z( w1 ]+ B5 M% { - Serial.println("[HTTP] begin...");7 F" w9 w9 c. K6 j) S0 k
- if (url.startsWith("https")) {
" |7 F+ k$ r; N8 N) M( P) h5 h7 s% @5 Q0 q - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
" k0 ?7 ?4 n) K5 ]: \8 M1 o - } else {) n. |6 B! \2 R W& k2 e; h4 X
- http.begin(url);
6 _' u; i0 p- c" [ - }# w0 T9 B# k0 M3 }( F2 M* O
- Serial.println("[HTTP] GET...");' Z6 l2 o! |1 P p! C8 A
- int httpCode = http.GET();
( ~: m0 |% d5 i" _ - if (httpCode > 0) {
: k$ x/ p2 R: @. F0 [0 L - Serial.printf("[HTTP] code: %d\n", httpCode);
' F* z+ {$ }+ H) {4 b) J1 f* w" |# s - if (httpCode == HTTP_CODE_OK) {: M3 P/ M8 S" S% Z- ~5 _ |( X8 j
- String payload = http.getString();! H6 ?+ C; v8 }/ e& d
- Serial.println(payload);; P* V7 o3 }6 f9 A
- Serial.print("\r\n");
8 u: Z: [, b( B - return payload; Z% m; K5 a5 U1 M4 d: D
- }9 J9 ~1 ?1 S9 U$ s" O/ V2 w
- } else {: b. H# ?1 x1 }' ?
- Serial.printf("[HTTP] GET... failed, error: %s\n",
; K8 K5 H2 W& x7 x2 v - http.errorToString(httpCode).c_str());
' w" e q: P$ V5 V/ n - }. o& T9 I8 b/ t
- http.end();- G3 S7 p0 M, ]4 s
- return "";
) }& G# c! q# |' _8 n6 [. Q. X& D - }
& |* p0 x# Y6 C! v) U - }
! G( F9 t, y- W' ~) _ - void mainAction() {% C" B& j- D% x0 _% r4 ]$ C7 b
- // 发送请求5 Y/ ~3 j, \$ n( X: M! O+ X
- doGet("http://google.cn");" ]% G1 z7 V1 x$ m
- }
7 c3 w; c0 t! X% n- P6 s
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