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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)7 {! O/ P% W3 Y" z
- #include <ESP8266HTTPClient.h>
/ P/ I" I' {, Y - #include <ESP8266WiFi.h>
# t) m0 O3 T' Z* N! T - #include <ESP8266WiFiMulti.h>, B. K1 b8 m$ }( @
- #include <ESP8266WebServer.h>2 J: V, ~% Y3 H6 g, G
- #include <arduino.h>
) B. \3 Z( {0 | - ESP8266WiFiMulti WiFiMulti;
( G0 L8 Z' n n) C1 N9 O1 d - ESP8266WebServer server(80);# R& V; s( Y) b4 D. j( z
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";4 }, X& V1 T9 | C
- ADC_MODE(ADC_VCC);
* Q; y; j8 u. H4 r" z m - void setup() {
2 i- {% ~* o* r0 N( X - Serial.begin(115200);
8 s/ T/ u* x! m( v O" H - Serial.print("\r\n\n");
$ k9 d e& _. C7 O4 D" k e2 b, k - pinMode(2,OUTPUT);1 V( I6 }7 T" O; F/ k: q
- // WIFI
1 j" B1 P' h' |7 e8 B( @ - WiFi.mode(WIFI_STA);! H* d5 z0 x6 w+ e
- WiFi.hostname("Sparkle");# b6 g! c9 h, U$ G! _4 F9 w. I% _7 D
- WiFiMulti.addAP("wifi ssid", "wifi password");
; a. Y9 F6 n# ]9 h/ b - int tryNum = 15;- r8 y @3 ?+ ]5 m2 i* ]$ B2 b6 f
- Serial.print("Connect WiFi");- z2 |, }2 i9 \
- while (WiFiMulti.run() != WL_CONNECTED) {
, G8 L/ U. A: O3 i0 p$ a8 p. Q' N - digitalWrite(2,0);
8 {, Y; i6 \# f - delay(200);
. J% B% R! i# j! j7 I) K - digitalWrite(2,1);
( h; ?4 n8 V$ [- ^$ F - delay(300);/ Q, n! H1 P2 X7 g% w2 ~( e' ^
- Serial.print(".");3 w/ g* T+ U; k8 a
- tryNum--;
) d( Q: T* [, \" Q+ c/ v: e - if (tryNum == 0) {
; `4 E0 Y# j( G7 y% }! c/ b3 n - // 1min# c1 g, E$ {0 z2 {
- // ESP.deepSleep(60e6);0 a5 u" y6 ?( |. y" [* b7 P- j6 l+ J
- ESP.deepSleep(0);
; L0 `' ]9 {5 J& J - }& p" _ z) X& u& k4 I2 l: M
- } p$ J V0 y& ? E; V9 h
- Serial.print("\r\n");
- R) R9 U( @" W7 E7 ^& B - digitalWrite(2,1);$ {3 v% ?" j6 b3 Q& J+ \
- Serial.print("IP address : ");4 |0 n+ m3 [: N
- Serial.println(WiFi.localIP());' c$ u1 d+ h! g3 R) l/ J8 X
- server.on("/", HTTP_GET, [](){2 `7 M3 R9 X9 e* E3 \, D( ]
- server.sendHeader("Connection", "close");
: L- [2 v+ P" v - server.send(200, "text/html", serverIndex);" ?2 ?& f5 P4 c2 B0 I6 R
- });
* N: O! @0 B0 W - server.on("/update", HTTP_POST, [](){
( u, ~: g0 P9 x' [0 A% ~ - server.sendHeader("Connection", "close");
% M8 [. w3 x6 r8 B3 t4 p. k - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
) t: c3 H5 @/ w, h - ESP.restart();
1 S( I+ U- [+ L1 `; F3 t - },[](){' H! i! x; Z: y" A4 A& U1 \
- HTTPUpload& upload = server.upload();+ q, P! w$ ^- a$ N0 Y8 i6 a
- if(upload.status == UPLOAD_FILE_START){
: T, w- ^) f& d) J( }! }/ P, V: L - Serial.setDebugOutput(true);8 ?- L. M$ A8 O4 J) J; V
- Serial.printf("Update: %s\n", upload.filename.c_str());
: [7 U. D' T0 B0 v# @# N - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
' Z% n+ ^0 a& e c0 j9 y, l% U4 H - if(!Update.begin(maxSketchSpace)){$ p& v! a* w& S; K9 J
- Update.printError(Serial);7 |7 O9 [7 b- `; j; q# z. P
- }2 m, U! N& l: T4 Z& O' B! I
- } else if(upload.status == UPLOAD_FILE_WRITE){
$ w) Z5 E3 `2 t7 [) y+ R* T+ y8 L - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
4 p0 d3 \) x9 Z. u0 Q2 k F - Update.printError(Serial);8 D& f, `0 f. S" q2 v
- }
) N7 Q& c6 A' t0 A - } else if(upload.status == UPLOAD_FILE_END){
0 G! t9 _ |' g$ c; | - if(Update.end(true)){9 U- P: m9 H4 m4 V
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
$ X7 k: a& \$ y( d# l- }( e - } else {
! d3 d& y; a# W - Update.printError(Serial);
; k1 L- U. i4 Z! d' K - }: S: o9 N. X. ^. e, ~6 N2 w( B
- Serial.setDebugOutput(false); `& l8 ]. K1 T% ^6 e* G: d" V) N0 E
- }# U0 H' ]. r9 y! G& ?
- yield();" O, P2 D9 `( [) n/ i
- });
X% T* S7 }- H4 g. O8 q - ; Q' o3 O I' B' X
- digitalWrite(2,0);
2 j; n0 V* t9 S0 w" N* { - mainAction();
' n. l' B7 Q& @1 [ - if (digitalRead(0)){
/ w6 _/ h8 O @. } - ESP.deepSleep(0); q" A3 I6 c5 E E* v/ T( O
- } else {& z; e. O. n$ p4 B3 F6 j" ^
- server.begin();
8 A! L# ^1 r' ?5 B0 O7 N - }* _/ {7 t. Q9 x' T9 i# P
- }
( X! d2 N' T" U M; E1 N" K0 R; K) f0 d/ g - void loop() {
3 p2 L2 s+ J$ C0 q5 l* Q8 e - server.handleClient();
7 h$ H2 W2 C* B# V* l8 k - delay(1);
7 j6 {; t& P- y& j" a% J5 u# d; R9 p - }2 u! n8 m, p* x8 o1 e9 }; Q
- String doGet(String url){
- S5 w, e& ^8 P& d& n5 E - if ((WiFiMulti.run() == WL_CONNECTED)) {$ s) g0 O, s# \+ L: R
- HTTPClient http;3 _) O# O# W8 V! A( b
- Serial.println("[HTTP] begin...");! Q! G P: D! P0 x
- if (url.startsWith("https")) { W8 g0 _& o0 k; J- z7 E
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");+ ~. a( a0 p4 u# X2 l7 C" c
- } else {
7 `5 K& h. n z& x D4 D - http.begin(url);4 n0 V$ _& y& Y: P* P; ^! H
- }0 w4 [; Q* E9 t: U* ? V# _. O2 f- ]
- Serial.println("[HTTP] GET...");
# r' D. \* J/ S2 W! Q. `8 D7 W - int httpCode = http.GET();
/ j; n5 k% r. H# O0 Z' I1 W - if (httpCode > 0) {/ a# [8 T+ s. c
- Serial.printf("[HTTP] code: %d\n", httpCode);/ O- ~( z4 ]+ j" z$ J, g0 l3 d
- if (httpCode == HTTP_CODE_OK) {
. t$ A# V( p# g1 B: [( q - String payload = http.getString();5 w+ \! k9 D( p9 h2 l
- Serial.println(payload);0 k# _) ?! _% v* V+ K( ~
- Serial.print("\r\n");1 V1 O$ }7 |& ^
- return payload; `/ r/ i: U4 }0 p
- }
5 \- p O: h5 e; m. [5 _5 k - } else {
+ k6 Q7 l* R9 r* _! n" U! l- |7 t - Serial.printf("[HTTP] GET... failed, error: %s\n",
4 M6 @# L, K+ ] A - http.errorToString(httpCode).c_str());" b& w" j+ b* ~2 H
- }
1 r* [ R' F) ^3 i2 l - http.end();5 i6 @6 l% B2 o9 v5 D+ t
- return "";
* j6 ^1 ~2 H9 u2 H$ E/ g - }
d( y, W" }5 y/ B' k& h! p - }# i- ? h2 B) K: |% [2 B
- void mainAction() {) C; |* _7 K5 [' \ g) k2 }* W
- // 发送请求4 L7 D- s6 u% C% W# M7 }
- doGet("http://google.cn");0 f, e7 X" r% @/ V- t' b
- }
& P+ _/ W* R0 e3 A9 j" Q
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