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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)
t* g `- l( c% D! O% \- #include <ESP8266HTTPClient.h>
, r" q8 T4 \' E4 e3 I) @ - #include <ESP8266WiFi.h># m1 ^: |- V b* o5 b, ~5 P/ d
- #include <ESP8266WiFiMulti.h>$ k0 |' N6 m9 ^( p$ L
- #include <ESP8266WebServer.h>8 l: |) _; ]% L/ b& _" @8 m/ m6 K
- #include <arduino.h>% U" O1 |! j8 a2 k, j1 c7 n( P
- ESP8266WiFiMulti WiFiMulti;
" c9 V) g/ X' g0 m" T - ESP8266WebServer server(80);
: A7 M6 B# w# l4 j - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";" W7 L9 F: E; H/ t
- ADC_MODE(ADC_VCC);
0 _: Z* d7 E- `. j2 ] - void setup() {9 w2 L K3 D/ c: G N |$ m0 n) w% N
- Serial.begin(115200);. N0 e# T/ O" B" ~2 ^# a
- Serial.print("\r\n\n");
; m* t: r# h1 |" z; Q; T7 p0 \& H - pinMode(2,OUTPUT);" M+ u6 Z: k$ z4 h
- // WIFI
3 e" W9 w* k# s9 H' ~ - WiFi.mode(WIFI_STA);
; x' ]; s8 c, h; x0 ?; i, d& G - WiFi.hostname("Sparkle");3 e; Y3 ^$ b* y8 [& t* W. B+ a9 f
- WiFiMulti.addAP("wifi ssid", "wifi password");" M( B+ R- `: @& N: C6 a! }1 {
- int tryNum = 15;& g# r+ X l" o
- Serial.print("Connect WiFi");
& e, q" `* h; f) H) ~! g* J% a - while (WiFiMulti.run() != WL_CONNECTED) {
0 \4 P5 d1 n, n3 d6 Y - digitalWrite(2,0);7 {+ C. |) y' ~: ?+ s) i
- delay(200);" m- s n: c( j9 A& G0 c
- digitalWrite(2,1);
# V1 }2 `2 ]+ ~. Q# i - delay(300);
, p" E4 D3 ?$ I2 D: r% u - Serial.print(".");
" `# G2 |& ]/ k+ |* x" e. U - tryNum--;
7 a2 z5 K& X' M! G9 s1 g! m - if (tryNum == 0) {
! W7 h4 n7 i. ~% V! n - // 1min
+ v; c. Z. {2 t" n - // ESP.deepSleep(60e6);
+ G4 D: E( ~2 F6 z7 c - ESP.deepSleep(0);! @6 X- g! W0 g, [
- }9 ]/ f9 |; X6 V# {) N/ o
- }$ z S+ F4 X8 ^. F' a6 S a
- Serial.print("\r\n");
( S/ P& x2 a1 p2 B7 d - digitalWrite(2,1);7 L+ e' C- ]- C+ e( D
- Serial.print("IP address : ");
6 y7 y, \7 k6 ~7 A0 j - Serial.println(WiFi.localIP());
/ ~7 Z" f( T+ r: Z% T2 B - server.on("/", HTTP_GET, [](){2 W( p1 d5 |9 R) P! y [. m
- server.sendHeader("Connection", "close");* R3 v2 R" B6 g- w! E& A; ?* P; ^
- server.send(200, "text/html", serverIndex);
) W0 G3 J P# C3 S - });: b M3 y, e" f3 L
- server.on("/update", HTTP_POST, [](){, o$ A" S' g- c4 Q
- server.sendHeader("Connection", "close");
9 F0 W+ N1 W { - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
4 d0 S) D+ D+ V5 ~. P - ESP.restart();% [3 G: A9 ?3 B2 V% i/ g5 l6 w) F( B
- },[](){) J- i" Q, i& C6 k
- HTTPUpload& upload = server.upload();
! H. j2 c0 @& y" Z! H - if(upload.status == UPLOAD_FILE_START){3 g2 a0 ]) n' S) i8 P/ D
- Serial.setDebugOutput(true);: x6 [" j. E2 r/ t! Z
- Serial.printf("Update: %s\n", upload.filename.c_str());0 }! @6 @ r# m4 F
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
; k1 _9 F( o, F! l7 u - if(!Update.begin(maxSketchSpace)){
( G0 E0 o# o4 j4 s, v& N5 R8 N: h - Update.printError(Serial);' O7 u" `6 C$ N; Q
- }/ z" U/ L7 @; z: O# h
- } else if(upload.status == UPLOAD_FILE_WRITE){ _. M+ _* h6 B' H
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
z6 B7 I5 K8 {# M/ `2 K - Update.printError(Serial);! q. T" y. V, T" F, h
- }
. T+ {8 O8 x3 j9 z - } else if(upload.status == UPLOAD_FILE_END){
, c( |- C6 Y, k3 Z% Y - if(Update.end(true)){
8 j% m: d# |' A/ F, g - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
3 V6 I: Q" K3 ~7 t5 P - } else {
* B1 ^& z# |3 i- H# r - Update.printError(Serial);
$ Y$ N1 g0 s( ]. ?/ b0 c' f - }0 Y! Y# H# v: F8 m
- Serial.setDebugOutput(false);* H6 p6 f- p# R8 d' H
- }) ?9 `. H( D; N* Q$ ^: M c
- yield();
; D8 f O6 Z* j) g - });5 w8 ?* t2 }$ _) H5 y% ~
-
) V) O! @# M9 }+ Q( i! C - digitalWrite(2,0);
" |1 v2 f! n2 Z( U+ v- E: X E - mainAction();, D+ X" M5 Z5 A; [
- if (digitalRead(0)){0 }2 D$ V3 V) W* _ v
- ESP.deepSleep(0);
4 T: t- w+ h; `# j- r* U - } else {
& q9 _# c) Q4 \5 p+ H# A - server.begin();2 {: m! B# e/ U4 v# v
- }$ V N |8 |2 \, B4 a* X) b
- }4 }! [3 n# M' [" k+ o7 g
- void loop() {
s6 `7 _8 L4 q! L6 c - server.handleClient();
9 P+ C9 ]1 u+ i - delay(1);
/ u, t w6 U, f: K3 e! V7 \$ w - }! y/ G8 C' r" n0 A/ T
- String doGet(String url){% P/ V0 e5 u8 _
- if ((WiFiMulti.run() == WL_CONNECTED)) {% m6 t0 R$ r/ ~& Z, P
- HTTPClient http;
8 i* S. x3 c l( h6 Y - Serial.println("[HTTP] begin...");$ i. G0 G# R) k8 N6 E
- if (url.startsWith("https")) {
) f1 M- C# u0 d3 S$ W3 Q0 F - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");! j; ]" L) B0 H1 n& _6 x) T& y' c* L
- } else {
* q5 b t L" H. V( z' R' M* u2 K - http.begin(url);
+ Y5 L$ W- B' ]. N6 w - }) {6 ?4 }7 H% W: ^4 W6 p3 ?
- Serial.println("[HTTP] GET...");( z8 E0 a6 E: V$ M" J! ` w5 \" K
- int httpCode = http.GET();: H' p' F, ?& B6 u( n1 Y4 j3 T
- if (httpCode > 0) {- m+ L7 c7 ^0 _$ x
- Serial.printf("[HTTP] code: %d\n", httpCode);/ f- S* e* L" V$ w( j E
- if (httpCode == HTTP_CODE_OK) {* `1 K5 u4 ^3 D& L l
- String payload = http.getString();
8 i7 F( b5 H) {) S" a - Serial.println(payload);3 A* i( B$ Q) H& ?0 r) C
- Serial.print("\r\n");: j U( A% f7 k4 \5 c: m
- return payload;5 n& j' |4 J( {! X$ s* B& Q4 K1 Q
- }/ S- W8 E2 l {! Y, Y
- } else {
2 |, ^6 d8 i4 c% n - Serial.printf("[HTTP] GET... failed, error: %s\n",
5 {# N& d' Q0 ^1 n c! X) s1 M - http.errorToString(httpCode).c_str());
2 |, f1 R$ A' a$ S Z - }2 X* x; Q& [7 b% q) ?
- http.end();! h0 W" ~5 A: w9 [
- return "";: i0 Z/ y3 o$ ]) \3 p) i8 h9 ~
- }+ g$ Z" S. w' ^, s! C$ c
- }
- F% _+ \! e" e) q& B) N# `. C - void mainAction() {* F1 U; X" W9 g5 U6 V2 u
- // 发送请求8 l6 l# o. E8 x7 b- v2 T: k
- doGet("http://google.cn");: z1 T7 V4 g+ } T5 }7 i8 @0 l
- }6 \+ X2 X) \5 k8 S, B
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