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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)
* a) |' d6 I! K9 I- f+ V1 t. x8 c- #include <ESP8266HTTPClient.h>
" [* h3 x* L- T9 m/ P) o - #include <ESP8266WiFi.h>
- D. A4 s. K4 ^# ~0 X5 ]# S" k - #include <ESP8266WiFiMulti.h>
: S; z# \ b- G* j6 O - #include <ESP8266WebServer.h>' ]- {- z& {, e# g/ q- S0 e' h
- #include <arduino.h>. J6 H, ~+ E- {0 _9 x0 I) W
- ESP8266WiFiMulti WiFiMulti;
) \; H1 M5 J9 a4 m - ESP8266WebServer server(80);- P+ {) j A! d. o
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";6 d7 d' u8 A: b- {$ o0 s6 N! B
- ADC_MODE(ADC_VCC);
5 N, d- K7 d8 W9 g% h* w- [$ d! r2 D- l - void setup() {' L6 c; A3 s. J$ M6 f6 u, _4 v
- Serial.begin(115200);" t, k* H+ T. P! V% j" Z
- Serial.print("\r\n\n");
4 f. T. b# S4 N: r' s& v - pinMode(2,OUTPUT);9 j' Y5 w& s# q' v! k2 v% {
- // WIFI1 g( y8 L3 Z2 a; a' ?
- WiFi.mode(WIFI_STA);
! |* ^, `( S+ m - WiFi.hostname("Sparkle");
9 {7 Y0 W7 X2 G/ R! K7 f" M& P3 @ - WiFiMulti.addAP("wifi ssid", "wifi password");* ~$ {3 _- Y# K
- int tryNum = 15;
T3 }+ w; J' D4 G% | - Serial.print("Connect WiFi");
- u3 r: }; t9 p: E. \ - while (WiFiMulti.run() != WL_CONNECTED) { f- ]; Z8 n9 c2 k) g f
- digitalWrite(2,0);
! \( V. V* u7 }3 ^9 t - delay(200);# K4 o: W4 M7 W, D/ M, x! e
- digitalWrite(2,1);
9 O- W8 u x6 |( b3 A: H1 l4 z - delay(300);
4 P R* d' j9 u& b - Serial.print(".");( e& N) H9 E% ^* l; D6 @0 ^1 a
- tryNum--;6 u7 Q' o% M/ L C! l5 V
- if (tryNum == 0) {# V% f; |& u6 f) _3 _+ e2 ^
- // 1min
5 _' N2 V0 y$ s9 F1 p - // ESP.deepSleep(60e6);
9 L# O. }- E+ a6 ~5 m+ R - ESP.deepSleep(0);
! \! H5 s$ `0 z - }0 H0 }8 s- n( U3 }
- } r! Q3 l% Y" K% n! Q
- Serial.print("\r\n");) h, k2 N! F1 C% |
- digitalWrite(2,1);! v' D7 H) V/ V, w
- Serial.print("IP address : ");
8 p+ E4 ]2 L' f( F - Serial.println(WiFi.localIP());. O" N7 L3 b/ V1 [! e h7 U' f
- server.on("/", HTTP_GET, [](){+ z3 n# E- `8 v. ~& c3 E( l( [
- server.sendHeader("Connection", "close");' e, }% N/ g6 }2 S% S
- server.send(200, "text/html", serverIndex);4 _, x- V- N3 k, m- P" a
- });: P# U7 q: \8 S9 f
- server.on("/update", HTTP_POST, [](){
9 i* e: B! e6 U - server.sendHeader("Connection", "close");/ Y! M' g; {, r& F% s- H
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");: i5 a; A# J5 o, U: c
- ESP.restart();
' C1 v/ m ^2 B - },[](){/ ~& P" y! z) u( F2 ~7 F
- HTTPUpload& upload = server.upload();
% B4 ]0 e* L; _8 }; ` - if(upload.status == UPLOAD_FILE_START){
, N4 \+ Z3 }% F* z D n* m - Serial.setDebugOutput(true); i9 G* `2 l3 \2 R
- Serial.printf("Update: %s\n", upload.filename.c_str());$ v3 P P) ?2 J
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;/ _/ P! N% u2 S( T1 W) ]( ?
- if(!Update.begin(maxSketchSpace)){8 ^- b5 I# l, s e
- Update.printError(Serial);
: i- w: X" b- ~$ g+ _ j+ r" r) X - }
# T" O9 L; x: j; w4 N - } else if(upload.status == UPLOAD_FILE_WRITE){5 _3 s4 m+ Q$ N2 l1 x8 N2 w
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){9 L1 g% Y, s8 w4 u8 G* y" Q4 L
- Update.printError(Serial);
- {4 N1 v5 @$ X. ? - }5 K$ t2 Y7 T' Y9 n8 ~
- } else if(upload.status == UPLOAD_FILE_END){9 {& K# M- E* m- Z' H2 i
- if(Update.end(true)){5 x" V5 O8 I. C2 j2 {
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);$ ]$ a5 ^' _) i8 S2 B$ V$ J: J
- } else {- ?- J" e$ X5 _6 f Y. G
- Update.printError(Serial);
& X( @$ k. t; ^# G* b' h - }( s9 r' `5 L- C# H
- Serial.setDebugOutput(false);7 j; S' q" s1 p+ [7 g) n- |
- }
8 Z/ k1 R7 D+ l. c* c - yield();
6 k) `# l; z, c - });; g" _6 o6 S% B+ ]4 J4 P
- ' `$ ^4 @8 W! B# s
- digitalWrite(2,0);
2 i6 d7 B3 T# ^8 A* |# U( {4 m- v- D - mainAction();
+ u6 h, O" _) u( i/ s0 n - if (digitalRead(0)){
1 p7 Q D4 j! Y% B - ESP.deepSleep(0);, W0 v1 H# G' c' T
- } else {
$ z9 @3 k- ^, J: C' W& z - server.begin();' s7 V* n% R: r* ^( T
- }/ r$ W& d: t( @! _2 c+ I
- }
+ E, G& s; l7 b1 e7 c: ]0 T6 E6 i. g - void loop() {
; x# n: a/ s( d5 n - server.handleClient();
2 g4 q& p# | r. q* A - delay(1);6 L( Q. r, c! z3 G" ^- \
- }& g. E% F) O* B5 B6 R% G5 j
- String doGet(String url){+ b# l: k/ g1 V
- if ((WiFiMulti.run() == WL_CONNECTED)) {
/ D% @2 A% U+ `' ^/ [# C9 @- d - HTTPClient http;
+ \& j* Q8 L3 E% x" f8 Z - Serial.println("[HTTP] begin...");& U2 t6 M6 ^" K b* ^& J& t$ x4 z
- if (url.startsWith("https")) {- @8 @2 {( n+ A0 c; v
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");6 v6 j( y( p8 B. l
- } else {' I0 _3 R4 }& z1 x) l7 O
- http.begin(url);
, a! q; F5 b3 \. E5 r: K - }
) g# {% n) o7 i - Serial.println("[HTTP] GET...");
3 \8 o& k6 _0 {+ Z0 c& D: q - int httpCode = http.GET();" z5 H8 Y3 h% O
- if (httpCode > 0) {% `; r* i9 q' f( P& |# p
- Serial.printf("[HTTP] code: %d\n", httpCode);% c2 \9 p. A2 [+ n5 `& e
- if (httpCode == HTTP_CODE_OK) {+ S1 t! U+ s9 Q* P
- String payload = http.getString();* ~0 a5 l! p% j6 ?3 `: `
- Serial.println(payload);
* r/ ^1 }7 t; @ }0 ~, p% W - Serial.print("\r\n");
4 G3 Z0 d! @) {$ c - return payload;
5 i- X( h+ G- `" A+ H0 k7 w+ K - }. w; {- }* D/ q/ w, Q
- } else {2 a9 j/ @: L2 K+ ~( [' S7 U, e
- Serial.printf("[HTTP] GET... failed, error: %s\n",
1 h d: n g; m' h- r6 P, [; H - http.errorToString(httpCode).c_str());
4 M% r( P- A+ n; m - }
& i$ G& f+ ~" t1 h! @8 k B - http.end();
6 o. \" i: q6 i9 g - return "";
5 e) n( a9 V. p, S - }
( A- [3 ?& X+ U5 o Q% Q( q" | - }0 r- h8 U% v4 t
- void mainAction() {! u1 d' x5 k- i( [7 ^7 j
- // 发送请求6 p. ^1 A+ b0 s2 c% Y# Q
- doGet("http://google.cn");
# [! c/ s$ K/ G0 W0 q* J3 [5 D - }
7 r4 _6 T6 N" r% ~& J, `* x6 L
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